JPH053444B2 - - Google Patents

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Publication number
JPH053444B2
JPH053444B2 JP59256481A JP25648184A JPH053444B2 JP H053444 B2 JPH053444 B2 JP H053444B2 JP 59256481 A JP59256481 A JP 59256481A JP 25648184 A JP25648184 A JP 25648184A JP H053444 B2 JPH053444 B2 JP H053444B2
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JP
Japan
Prior art keywords
group
groups
general formula
weight
substituted
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
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JP59256481A
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Japanese (ja)
Other versions
JPS61134302A (en
Inventor
Shozo Kato
Naohiko Kondo
Masaru Ogasawara
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Tokuyama Corp
Original Assignee
Tokuyama Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Priority to JP59256481A priority Critical patent/JPS61134302A/en
Publication of JPS61134302A publication Critical patent/JPS61134302A/en
Publication of JPH053444B2 publication Critical patent/JPH053444B2/ja
Granted legal-status Critical Current

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Description

【発明の詳现な説明】[Detailed description of the invention]

〔産業䞊の利甚分野〕 本発明は−眮換クロロアセトアニリドにでん
ぷん類を混合するこずを特城ずする陀草剀組成物
に関するものである。 〔埓来の技術及び発明が解決しようずする問題
点〕 本質的に陀草剀補剀に芁求される性質ずしお、
䞋蚘の぀の事項がある。即ち、぀には䜜物に
安党であるこず、぀には雑草に察しおムラのな
い安定した陀草効果を瀺すこず。぀には陀草剀
の効力が長期的に持続するこず、぀には環境問
題、コスト等から有効成分が䜎含有量でより効果
的な陀草䜜甚を有するこず、である。 本発明者らは優れた陀草剀ずしお䞋蚘の䞀般匏
で瀺される補剀の開発を目指しお鋭意研究を重ね
た。 䞋蚘の䞀般匏〔〕、 䜆し、匏䞭R1R2及びR3は同皮又は異皮の
氎玠原子、ハロゲン原子、アルキル基、アルコキ
シ基、アルキルチオ基、アルコキシアルキル基又
はアルキルチオアルキル基を瀺し、R4は氎玠原
子又はアルキル基を瀺し、R5R6及びR7は同皮
又は異皮の氎玠原子、ハロゲン原子、アルキル
基、アルケニル基、アルキニル基、アルコキシ
基、又はアルキルチオ基を瀺す。 で衚わされる−眮換−クロロアセトアニリドを
既に提案した特願昭58−111077号その他。圓
然のこずではあるが、陀草剀の効果発珟に斌ける
補剀の圹割は非垞に重芁なものである。即ち、原
䜓のも぀物理的あるいは化孊的性質を熟慮しお最
適の補剀凊方を行わない限り十分な陀草効果を期
埅するこずはほずんど䞍可胜である。 本発明者らは、䞊蚘䞀般匏〔〕で瀺される
−眮換−クロロアセトアニリドを陀草剀ずしお、
より効果的に䜿甚するこずを目的ずしお、その補
剀凊方に関しお鋭意研究を続けおきたずころ、䞊
蚘䞀般匏〔〕で瀺される−眮換−クロロアセ
トアニリドにでんぷん類を混合するこずによ぀お
埗られる陀草剀組成物が、それぞれ単独の性質か
らは党く予期できない皋の盞乗䜜甚を珟わすこ
ず、即ち、䜎薬量で安定した陀草効果をも぀こず
を芋い出した。本発明者らはこれらの新知芋に基
づき、本発明を提案するに至぀た。 〔問題点を解決するための手段〕 本発明は、䞋蚘䞀般匏〔〕、 䜆し、匏䞭R1R2及びR3は同皮又は異皮の
氎玠原子、ハロゲン原子、アルキル基、アルコキ
シ基、アルキルチオ基、アルコキシアルキル基又
はアルキルチオアルキル基を瀺し、R4は氎玠原
子又はアルキル基を瀺し、R5R6及びR7は同皮
又は異皮の氎玠原子、ハロゲン原子、アルキル
基、アルケニル基、アルキニル基、アルコキシ
基、又はアルキルチオ基を瀺す。 で衚わされる−眮換−クロロアセトアニリドず
でんぷん類、即ち、銬鈎薯、小麊、トりモロコ
シ、米、甘藷等のでんぷんの䞭から遞ばれた぀
あるいはその混合物を混合するこずを特城ずする
陀草剀組成物である。 本発明の陀草剀組成物の成分は、䞋蚘の䞀般匏
〔〕で瀺される−眮換−クロロアセトアニリ
ドである。 䞊蚘䞀般匏〔〕で瀺される−眮換−クロロ
アセトアニリドのうち、チオプン環の䜍ず
[Industrial Application Field] The present invention relates to a herbicidal composition characterized by mixing starch with N-substituted chloroacetanilide. [Problems to be solved by the prior art and the invention] Properties essentially required for herbicide preparations include:
There are four matters below. That is, firstly, it must be safe for crops, and secondly, it must exhibit an even and stable weeding effect against weeds. The third reason is that the herbicide's effectiveness lasts for a long period of time, and the fourth reason is that the herbicide has a more effective herbicidal effect with a lower content of active ingredients due to environmental issues, cost, etc. The present inventors have conducted extensive research with the aim of developing a formulation represented by the following general formula as an excellent herbicide. The following general formula [], (However, in the formula, R 1 , R 2 and R 3 represent the same or different hydrogen atoms, halogen atoms, alkyl groups, alkoxy groups, alkylthio groups, alkoxyalkyl groups or alkylthioalkyl groups, and R 4 represents a hydrogen atom or an alkyl R 5 , R 6 and R 7 are the same or different hydrogen atoms, halogen atoms, alkyl groups, alkenyl groups, alkynyl groups, alkoxy groups, or alkylthio groups. Acetanilide has already been proposed (Patent Application No. 111077/1984 and others). Naturally, the role of formulations in the expression of herbicide effects is very important. In other words, it is almost impossible to expect a sufficient herbicidal effect unless the physical or chemical properties of the drug substance are carefully considered and the optimal formulation is formulated. The present inventors have discovered that N represented by the above general formula []
-Substituted-chloroacetanilide as a herbicide,
With the aim of using it more effectively, we have continued intensive research on its formulation, and have found that weed control can be obtained by mixing starch with N-substituted chloroacetanilide represented by the above general formula []. It has been discovered that the drug composition exhibits a synergistic effect that could not be predicted from the properties of each agent alone, that is, it has a stable herbicidal effect at a low dose. The present inventors have proposed the present invention based on these new findings. [Means for solving the problems] The present invention is based on the following general formula [], (However, in the formula, R 1 , R 2 and R 3 represent the same or different hydrogen atoms, halogen atoms, alkyl groups, alkoxy groups, alkylthio groups, alkoxyalkyl groups or alkylthioalkyl groups, and R 4 represents a hydrogen atom or an alkyl R 5 , R 6 and R 7 are the same or different hydrogen atoms, halogen atoms, alkyl groups, alkenyl groups, alkynyl groups, alkoxy groups, or alkylthio groups. This is a herbicidal composition characterized by mixing acetanilide and starch, that is, one selected from starches such as potato, wheat, corn, rice, sweet potato, etc., or a mixture thereof. The component of the herbicidal composition of the present invention is an N-substituted-chloroacetanilide represented by the following general formula []. Among the N-substituted-chloroacetanilides represented by the above general formula [], the 2-position of the thiophene ring

【匏】ずが結合しおおり、R1が氎玠原子たた はアルキル基、R2R3及びR4が氎玠原子であり、
R5はアルキル基であり、R6が氎玠原子、アルキ
ル基たたはアルコキシ基であり、R7は氎玠原子、
アルキル基たたはハロゲン原子である化合物は、
米囜特蚱第3901917号により公知である。しかし、
その他の倧郚分は、新芏な化合物である。 前蚘䞀般匏〔〕䞭、R1R2R3R5R6及
びR7で瀺されるハロゲン原子の具䜓䟋ずしおは、
塩玠、臭玠、フツ玠、ペり玠の各原子が挙げられ
る。たた、前蚘䞀般匏䞭、R1R2R3R4
R5R6及びR7で瀺されるアルキル基は、盎鎖状、
分枝状のいずれであ぀おも良く、炭玠数も特に制
限されない。しかし、原料入手の容易さから炭玠
数は〜個であるこずが奜適である。該アルキ
ル基の具䜓䟋を䟋瀺するず、メチル基、゚チル
基、−プロピル基、iso−プロピル基、−ブ
チル基、iso−ブチル基、−ブチル基、−ペ
ンチル基、−ヘキシル基等が挙げられる。前蚘
䞀般匏〔〕䞭、R1R2R3R5R6及びR7で
瀺されるアルコキシ基は特に限定されないが、䞀
般には炭玠原子数〜個の盎鎖状たたは分枝状
の飜和あるいは䞍飜和基が奜適である。䞀般に奜
適に䜿甚される該アルコキシ基の具䜓䟋を提瀺す
るず、メトキシ基、゚トキシ基、−プロポキシ
基、−ブトキシ基、−ペントキシ基、−ヘ
キ゜キシ基、アリルオキシ基等が挙げられる。 前蚘䞀般匏〔〕䞭、R1R2R3R5R6及
びR7で瀺されるアルキルチオ基は、特に限定さ
れず公知のものが䜿甚出来るが、䞀般には炭玠原
子数〜個の盎鎖状たたは分枝状の飜和あるい
は䞍飜和基が奜適である。奜適に䜿甚される該ア
ルキルチオ基の具䜓䟋を提瀺するず、メチルチオ
基、゚チルチオ基、−プロピルチオ基、−ブ
チルチオ基、−ペンチルチオ基、−ヘキシル
チオ基、アリルチオ基等が挙げられる。たた、前
蚘䞀般匏䞭R1R2及びR3で瀺されるアルコキシ
アルキル基は炭玠数に特に制限されないが、炭玠
数〜個の盎鎖状たたは分枝状の飜和あるいは
䞍飜和基が奜適であり、該アルコキシルアルキル
基の具䜓䟋を䟋瀺するず、メトキシメチル基、メ
トキシ゚チル基、゚トキシメチル基、−プロポ
キシメチル基、−ブトキシ゚チル基、アリルオ
キシ゚チル基等が挙げられる。曎にたた、前蚘䞀
般匏䞭、R1R2及びR3で瀺されるアルキルチオ
アルキル基は炭玠数に特に制限されないが、炭玠
数〜個の盎鎖状たたは分枝状の飜和あるいは
䞍飜和基が奜適であり、該アルキルチオアルキル
基の具䜓䟋を䟋瀺するず、メチルチオメチル基、
メチルチオ゚チル基、゚チルチオメチル基、−
プロピルチオメチル基、−ブチルチオ゚チル
基、アリルチオ゚チル基等が挙げられる。たた、
前蚘䞀般匏䞭、R5R6及びR7で瀺されるアルケ
ニル基は、盎鎖状、分枝状を問わず、炭玠数も特
に制限されない。しかし、原料入手の容易さから
炭玠数は〜個であるこずが奜適である。該ア
ルケニル基の具䜓䟋を䟋瀺するず、ビニル基、ア
リル基、iso−プロペニル基、−ブテニル基、
−ブテニル基等が挙げられる。たた、前蚘䞀般
匏䞭、R5R6及びR7で瀺されるアルキニル基は、
盎鎖状、分枝状を問わず、炭玠数も特に制限され
ないが、前蚘ず同様に炭玠数が〜個であるこ
ずが奜適である。該アルキニル基の具䜓䟋を䟋瀺
するず、゚チニル基、−プロピニル基等が挙げ
られる。 䞊蚘の−眮換−クロロアセトアニリドのう
ち、R1が同皮又は異皮のハロゲン原子、アルコ
キシ基、アルキルチオ基、アルコキシアルキル
基、又はアルキルチオ基、アルコキシアルキル
基、又はアルキルチオアルキル基であり、R2及
びR3が同皮又は異皮の氎玠原子、ハロゲン原子、
アルキル基、アルコキシ基、アルキルチオ基、ア
ルコキシアルキル基、又はアルキルチオアルキル
基であり、R4は氎玠原子又はアルキル基であり、
R5R6及びR7は同皮又は異皮の氎玠原子、ハロ
ゲン原子、アルキル基、アルケニル基、アルキニ
ル基、アルコキシ基又はアルキルチオ基である化
合物は、1510aあるいはそれ以䞋の䜎濃床で
䜿甚しおも、ノビ゚などの䞀幎生雑草及びミズガ
ダツリなどの倚幎生雑草をも完党に枯死させる皋
の優れた陀草効果をも぀ばかりでなく、500
10aずいう高濃床で䜿甚しおも皲に察しお党く無
害であるため、本発明に斌いお奜適に甚いられ
る。就䞭、R1〜R3のうち少くずも぀が氎玠原
子以倖の眮換基であり、この眮換基がチオプン
環に結合した
[Formula] is bonded, R 1 is a hydrogen atom or an alkyl group, R 2 , R 3 and R 4 are hydrogen atoms,
R 5 is an alkyl group, R 6 is a hydrogen atom, an alkyl group, or an alkoxy group, R 7 is a hydrogen atom,
A compound that is an alkyl group or a halogen atom is
It is known from US Pat. No. 3,901,917. but,
Most of the others are new compounds. In the general formula [], specific examples of the halogen atoms represented by R 1 , R 2 , R 3 , R 5 , R 6 and R 7 include:
Examples include chlorine, bromine, fluorine, and iodine atoms. Furthermore, in the general formula, R 1 , R 2 , R 3 , R 4 ,
The alkyl groups represented by R 5 , R 6 and R 7 are linear,
It may be in any branched form, and the number of carbon atoms is not particularly limited. However, from the viewpoint of easy availability of raw materials, the number of carbon atoms is preferably 1 to 6. Specific examples of the alkyl group include methyl group, ethyl group, n-propyl group, iso-propyl group, n-butyl group, iso-butyl group, t-butyl group, n-pentyl group, n-hexyl group. etc. In the general formula [], the alkoxy groups represented by R 1 , R 2 , R 3 , R 5 , R 6 and R 7 are not particularly limited, but are generally linear or branched groups having 1 to 6 carbon atoms. Branched saturated or unsaturated groups are preferred. Specific examples of the alkoxy group that are generally preferably used include methoxy group, ethoxy group, n-propoxy group, t-butoxy group, n-pentoxy group, n-hexoxy group, allyloxy group, and the like. In the general formula [], the alkylthio groups represented by R 1 , R 2 , R 3 , R 5 , R 6 and R 7 are not particularly limited and any known alkylthio group can be used, but they generally have 1 to 1 carbon atoms. Six straight-chain or branched saturated or unsaturated groups are preferred. Specific examples of the alkylthio group suitably used include methylthio group, ethylthio group, n-propylthio group, t-butylthio group, n-pentylthio group, n-hexylthio group, and allylthio group. In addition, the alkoxyalkyl group represented by R 1 , R 2 and R 3 in the above general formula is not particularly limited in the number of carbon atoms, but may be a linear or branched saturated or unsaturated group having 2 to 6 carbon atoms. Specific examples of suitable alkoxylalkyl groups include methoxymethyl group, methoxyethyl group, ethoxymethyl group, n-propoxymethyl group, t-butoxyethyl group, and allyloxyethyl group. Furthermore, in the general formula, the alkylthioalkyl group represented by R 1 , R 2 and R 3 is not particularly limited in the number of carbon atoms, but may be a linear or branched saturated or unsaturated group having 2 to 6 carbon atoms. Examples of the alkylthioalkyl group include methylthiomethyl group,
Methylthioethyl group, ethylthiomethyl group, n-
Examples include propylthiomethyl group, t-butylthioethyl group, and allylthioethyl group. Also,
In the general formula, the alkenyl groups represented by R 5 , R 6 and R 7 may be linear or branched, and the number of carbon atoms is not particularly limited. However, from the viewpoint of easy availability of raw materials, the number of carbon atoms is preferably 2 to 4. Specific examples of the alkenyl group include vinyl group, allyl group, iso-propenyl group, 2-butenyl group,
Examples include 3-butenyl group. Furthermore, in the general formula, the alkynyl groups represented by R 5 , R 6 and R 7 are:
The number of carbon atoms is not particularly limited, regardless of whether it is linear or branched, but it is preferable that the number of carbon atoms is 2 to 4 as described above. Specific examples of the alkynyl group include ethynyl group, 2-propynyl group, and the like. In the above N-substituted-chloroacetanilide, R 1 is the same or different halogen atom, alkoxy group, alkylthio group, alkoxyalkyl group, or an alkylthio group, alkoxyalkyl group, or alkylthioalkyl group, and R 2 and R 3 is the same or different hydrogen atom, halogen atom,
an alkyl group, an alkoxy group, an alkylthio group, an alkoxyalkyl group, or an alkylthioalkyl group, R 4 is a hydrogen atom or an alkyl group,
Compounds in which R 5 , R 6 and R 7 are the same or different hydrogen atoms, halogen atoms, alkyl groups, alkenyl groups, alkynyl groups, alkoxy groups or alkylthio groups may be used at a low concentration of 15 g/10a or less. However, it not only has an excellent weeding effect that completely kills annual weeds such as field weeds and perennial weeds such as water cypress, but also has an excellent weeding effect of 500 g/
Since it is completely harmless to rice even when used at a high concentration of 10a, it is suitably used in the present invention. In particular, at least one of R 1 to R 3 is a substituent other than a hydrogen atom, and this substituent is bonded to the thiophene ring.

【匏】のオル゜䜍に眮換しおお り、R4は氎玠原子であり、さらに、R5〜R7のう
ち少くずも぀が氎玠原子以倖の眮換基であり、
これらの眮換基がプニル基の䜍ず䜍に眮換
した−眮換−クロロアセトアニリドが䞊蚘の性
質がより匷いため、特に奜たしく甚いられる。 前蚘䞀般匏〔〕で瀺される−眮換−クロロ
アセトアニリドの構造は、次の手段によ぀お確認
するこずができる。 (ã‚€) 赀倖吞収スペクトルIRを枬定するこず
により、3150〜2800cm-1付近にCH結合に基づ
く吞収、1680〜1660cm-1付近にアミド基のカル
ボニル結合に基づく特性吞収を芳察するこずが
出来る。 (ロ) 質量スペクトルMSを枬定し、芳察され
る各ピヌク䞀般にはむオン質量数をむオン
の荷電数で埐したで衚わされる倀に
盞圓する組成匏を算出するこずにより、枬定に
䟛した化合物の分子量ならびに該分子内におけ
る各原子団の結合様匏を知るこずが出来る。す
なわち、枬定に䟛した詊料を䞀般匏〔〕 で衚わした堎合、䞀般に分子むオンピヌク以
䞋 ず略蚘するが分子䞭に含有されるハロ
ゲン原子の個数に応じお同䜍䜓存圚比に埓぀た
匷床比で芳察されるため、枬定に䟛した化合物
の分子量を決定するこずが出来る。さらに前蚘
䞀般匏〔〕で瀺される−眮換−クロロアセ
トアニリドに぀いおは、 −Cl、 −
COCH2Cl及び
[Formula] is substituted at the ortho position, R 4 is a hydrogen atom, and furthermore, at least two of R 5 to R 7 are substituents other than hydrogen atoms,
N-substituted chloroacetanilide in which these substituents are substituted at the 2- and 6-positions of the phenyl group is particularly preferably used because the above-mentioned properties are stronger. The structure of the N-substituted chloroacetanilide represented by the general formula [] can be confirmed by the following means. (b) By measuring the infrared absorption spectrum (IR), it is possible to observe an absorption based on the CH bond in the vicinity of 3150 to 2800 cm -1 and a characteristic absorption based on the carbonyl bond of the amide group in the vicinity of 1680 to 1660 cm -1 . I can do it. (b) Measure the mass spectrum (MS) and calculate the composition formula corresponding to each observed peak (generally a value expressed as m/e, which is the ion mass number m divided by the ion charge number e). By this method, it is possible to know the molecular weight of the compound subjected to measurement and the bonding mode of each atomic group within the molecule. In other words, the sample subjected to measurement is expressed by the general formula [] When expressed as The molecular weight of can be determined. Furthermore, regarding the N-substituted-chloroacetanilide represented by the general formula [], M -Cl, M -
COCH2Cl and

〔効果〕〔effect〕

以䞊に説明した本発明の陀草剀組成物は、その
各成分単独の性質からは党く予想できない陀草効
果を瀺す。即ち、特定の−眮換−クロロアセト
アニリドにでんぷん類を添加配合するこずによ
り、陀草剀の有効成分である該−眮換−クロロ
アセトアニリドの含有量をより少くした陀草剀䜿
甚態様においおも埌述する実斜䟋に瀺すように該
−眮換−クロロアセトアニリド単独に比べおも
同等の陀草効果を発珟する。しかも䜜物に察しお
は著しく安党なものである。 埓぀お、本発明の陀草剀組成物は、陀草剀に芁
求される性質を十分に満たすものであ぀お、その
有甚性は極めお倧きいものである。 以䞋に、本発明の陀草剀組成物を実斜䟋で具䜓
的に説明するが、本発明は、これら実斜䟋に限定
されるものではない。 −眮換−クロロアセトアニリドの合成 合成䟋  −〔2′−5′−ブロム−チ゚ニルメチル〕−
−ゞメチルアニリン1.816.14×10-3
moleをベンれン40mlに溶解しトリ゚チルアミ
ン0.817.98×10-3moleを加え、氷氎䞭に蚭
眮した。次いでクロルアセチルクロリド0.83
7.37×10-3moleのベンれン溶液15mlを
埐々に添加した。時間攪拌した埌、50℃で時
間加熱した。該反応混合物を宀枩に冷华した埌、
æ°Ž50ml、2N−塩酞50ml、続いお氎50mlによ぀お
順次掗浄し、ベンれン局を無氎硫酞ナトリりムで
也燥した。その埌カラムクロマトにお粟補し、黄
色固䜓1.13を埗た。このものの赀倖吞収スペク
トルを枬定した結果、3110〜2900cm-1に−結
合に基づく吞収、1670cm-1にアミド基のカルボニ
ル結合に基づく匷い吞収を瀺した。その元玠分析
倀はC48.3、H4.05、N3.99であ぀お、C15
H15NSOBrCl372.71に察する蚈算倀である
C48.20、H4.32、N3.75に良く䞀臎した。 たた、質量スペクトルを枬定したずころ、
e371に分子量に察応する分子むオンピヌク
、e336に −Clに察応するピヌク、
e293に −COCH2Clに察応するピヌク、
e143100に に察応する各ピヌクを瀺した。 さらに、1H−栞磁気共鳎スペクトルに぀いお
は、明现曞に具䜓䟋ずしお瀺したずおりである。 䞊蚘の結果から、単離生成物が−〔2′−5′−
ブロム−チ゚ニルメチル〕−−クロロアセト−
−ゞメチルアニリド以䞋、化合物(1)ず略
蚘するであるこずが明らかずな぀た。収率は
−〔2′−5′−ブロム−チ゚ニルメチル〕−
−ゞメチルアニリンに察し、49.53.04×10-3
moleであ぀た。 合成䟋 合成䟋ず同様にしお合成した−眮換−クロ
ロアセトアニリドの性状、物性沞点、赀倖ス
ペクトルにおける特性吞収倀及び元玠分析結果を
䜵せお第衚に略蚘した。 尚、第衚䞭の䞀般匏 は、前蚘䞀般匏〔〕 に察応し、は
The herbicidal composition of the present invention described above exhibits a herbicidal effect that cannot be expected from the properties of each component alone. That is, by adding starch to a specific N-substituted-chloroacetanilide, the content of the N-substituted-chloroacetanilide, which is an active ingredient of the herbicide, is reduced. As shown in the examples, it exhibits the same herbicidal effect as the N-substituted chloroacetanilide alone. Furthermore, it is extremely safe for crops. Therefore, the herbicidal composition of the present invention fully satisfies the properties required of a herbicide and is extremely useful. EXAMPLES The herbicidal composition of the present invention will be specifically explained below using Examples, but the present invention is not limited to these Examples. Synthesis of N-substituted-chloroacetanilide (Synthesis Example 1) N-[2'-(5'-bromo)-thienylmethyl]-
2,6-dimethylaniline 1.81g (6.14×10 -3
mole) was dissolved in 40 ml of benzene, 0.81 g (7.98 x 10 -3 mole) of triethylamine was added, and the mixture was placed in ice water. Then 0.83g of chloroacetyl chloride
(7.37×10 −3 mole) in benzene solution (15 ml) was gradually added. After stirring for 3 hours, the mixture was heated at 50°C for 1 hour. After cooling the reaction mixture to room temperature,
It was washed successively with 50 ml of water, 50 ml of 2N hydrochloric acid, and then 50 ml of water, and the benzene layer was dried over anhydrous sodium sulfate. Thereafter, it was purified by column chromatography to obtain 1.13 g of a yellow solid. As a result of measuring the infrared absorption spectrum of this product, it showed an absorption based on the C-H bond at 3110 to 2900 cm -1 and a strong absorption based on the carbonyl bond of the amide group at 1670 cm -1 . Its elemental analysis values are C48.3%, H4.05%, N3.99%, and C15
This is the calculated value for H 15 NSOB r Cl (372.71)
It matched well with C48.20%, H4.32%, and N3.75%. In addition, when mass spectra were measured, m/
Molecular ion peak corresponding to molecular weight (M
), a peak corresponding to M-Cl at m/e336,
A peak corresponding to M-COCH 2 Cl at m/e293,
m/e143 (100%) The corresponding peaks are shown. Furthermore, the 1 H-nuclear magnetic resonance spectrum is as shown as a specific example in the specification. From the above results, it is clear that the isolated product is N-[2'-(5'-
bromo)-thienylmethyl]-N-chloroaceto-
It became clear that it was 2,6-dimethylanilide (hereinafter abbreviated as compound (1)). The yield is N
-[2'-(5'-bromo)-thienylmethyl]-2,6
−49.5% (3.04×10 -3 for dimethylaniline)
mole). (Synthesis Example 2) The properties, physical properties (boiling point), characteristic absorption values in the infrared spectrum, and elemental analysis results of N-substituted-chloroacetanilide synthesized in the same manner as in Synthesis Example 1 are summarized in Table 1. Furthermore, the general formula in Table 1 is the general formula [] Corresponding to, A is

【匏】を、はR4を、 は[Formula], B is R 4 , D is

【匏】を意味する。[Formula] means.

【衚】【table】

【衚】【table】

【衚】【table】

【衚】【table】

【衚】【table】

【衚】【table】

【衚】【table】

【衚】【table】

【衚】【table】

【衚】【table】

【衚】【table】

【衚】【table】

【衚】 補剀䟋 粒剀 第衚No.の化合物重量郚、ゞオクチルサク
シネヌト重量郚、リグニンスルホン酞゜ヌダ
重量郚、ベントナむト15重量郚、銬鈎薯でんぷん
40重量郚、及びタルク40重量郚をよく混合粉砕
し、氎を加えお混緎した埌、造粒也燥し、14〜32
メツシナに敎粒しお埗た。 補剀䟋 氎和剀 第衚No.の化合物10重量郚、ポリオキシ゚チ
レンノニルプニル゚ヌテル重量郚、小麊でん
ぷん20重量郚、埮粉クレヌ20重量郚、及びゞヌク
ラむト48重量郚をハンマヌミルで粉砕混合しお氎
和剀を埗た。 補剀䟋 粉剀 第衚No.42の化合物重量郚、トりモロコシで
んぷん30重量郚、ホワむトカヌボン重量郚及び
クレヌ64重量郚をハンマヌミルで粉砕混合しお粉
剀を埗た。 補剀䟋 埮粒剀 第衚No.63の化合物重量郚、甘藷でんぷん
重量郚、米でんぷん重量郚、クレヌ87郚および
ポリビニルアルコヌル郚を十分攪拌混合した
埌、氎郚を泚加しながら転動造粒機で造粒し、
そしお也燥する。48〜150メツシナに篩別しお埮
粒剀を埗た。 尚、比范䟋ずしおでんぷん類を含たないものに
぀いおは、でんぷん類のかわりに皮々の粘土鉱物
を甚いお、補剀䟋ず同様の手法で
実斜した。 実斜䟋  8850アヌルの磁補ポツトに氎を加えお攪拌
した氎田土壌沖積壌土を充填し、ノビ゚の皮
子を播いた埌、氎を加えおcmの湛氎状態にし
た。ノビ゚が2.0葉期に生長した埌、補剀䟋に
準じお補造した各化合物の粒剀をKg10aずし
お所定量凊理した。凊理埌平均気枩25℃の枩宀内
で生育させ、週間埌に各䟛詊粒剀の陀草効果を
調査した。その結果を第衚に瀺した。ただし、
衚䞭には比范䟋ずしおでんぷん類を含たない堎合
の結果を同時に蚘茉した。 なお、陀草効果に぀いおは抑草率100〜
を10〜の数倀に換算し次ぎの10段階で評䟡し
た。 10100完党枯死 90〜99 80〜89 70〜79 60〜69 50〜59 40〜49 20〜39 10〜19 〜 党く効果が認められない。 実斜䟋  8850アヌルの磁補ポツトに氎を加えお攪拌
した氎田土壌沖積壌土を充填し、ノビ゚の皮
子を播いた埌、氎を加えおcmの湛氎状態にし
た。ノビ゚が2.0葉期に生長した埌、補剀䟋に
準じお補造した各化合物の氎和剀を30010a
ずしお、その氎溶液を所定量凊理した。凊理埌平
均気枩25℃の枩宀内で生育させ、週間埌に各䟛
詊粒剀の陀草効果を調査した。その結果を第衚
に瀺した。ただし、衚䞭には比范䟋ずしお、でん
ぷん類を含たない堎合の結果を同時に蚘茉した。
なお、衚䞭の陀草効果の基準は実斜䟋ず同䞀で
ある。
[Table] Formulation Example 1 (Granules) 1 part by weight of the compound shown in Table 1 No. 4, 1 part by weight of dioctyl succinate, 3 parts by weight of sodium ligninsulfonate
parts by weight, 15 parts by weight of bentonite, potato starch
40 parts by weight and 40 parts by weight of talc are thoroughly mixed and pulverized, water is added and kneaded, and then granulated and dried.
It was obtained by grading into mesh. Formulation Example 2 (Wettable powder) 10 parts by weight of the compound No. 6 in Table 1, 2 parts by weight of polyoxyethylene nonyl phenyl ether, 20 parts by weight of wheat starch, 20 parts by weight of fine clay, and 48 parts by weight of Siegrite. The mixture was ground and mixed in a hammer mill to obtain a wettable powder. Formulation Example 3 (Powder) 5 parts by weight of the compound No. 42 in Table 1, 30 parts by weight of corn starch, 1 part by weight of white carbon, and 64 parts by weight of clay were ground and mixed in a hammer mill to obtain a powder. Formulation example 4 (fine granules) 2 parts by weight of the compound No. 63 in Table 1, 5 parts of sweet potato starch
parts by weight, 5 parts by weight of rice starch, 87 parts of clay, and 1 part of polyvinyl alcohol were thoroughly stirred and mixed, and then granulated using a rotary granulator while adding 5 parts of water.
and dry. Fine granules were obtained by sieving into 48 to 150 mesh pieces. As a comparative example, preparations not containing starch were carried out in the same manner as in Formulation Examples 1, 2, 3, and 4, using various clay minerals instead of starch. Example 1 A 1/8850 are porcelain pot was filled with paddy soil (alluvial loam) that had been stirred with water, and after sowing wild grass seeds, water was added to make the pot submerged to a depth of 3 cm. After the wildflowers had grown to the 2.0 leaf stage, a predetermined amount of 3 kg/10a of granules of each compound prepared according to Formulation Example 1 was treated. After treatment, the plants were grown in a greenhouse at an average temperature of 25°C, and three weeks later, the herbicidal effects of each test granule were investigated. The results are shown in Table 2. however,
In the table, the results when no starch was included are also listed as a comparative example. Regarding the weeding effect, weed suppression rate (100-0%)
was converted into a numerical value from 10 to 0 and evaluated on the following 10 scale. 10: 100% (complete withering) 9: 90-99% 8: 80-89% 7: 70-79% 6: 60-69% 5: 50-59% 4: 40-49% 3: 20-39% 2:10-19% 1:1-9% 0:0% (No effect observed at all.) Example 2 Paddy soil (alluvial loam) prepared by adding water to a 1/8850 are porcelain pot and stirring After filling and sowing wildflower seeds, water was added to make it flooded to a depth of 3 cm. After the wildflowers have grown to the 2.0 leaf stage, apply 300g/10a of the hydrating agent of each compound produced according to Formulation Example 2.
A predetermined amount of the aqueous solution was treated. After treatment, the plants were grown in a greenhouse at an average temperature of 25°C, and three weeks later, the herbicidal effects of each test granule were investigated. The results are shown in Table 3. However, as a comparative example, the table also shows the results when no starch was included.
Note that the criteria for the herbicidal effect in the table are the same as in Example 1.

【衚】【table】

【衚】【table】

【衚】【table】

【衚】【table】

【衚】【table】

【衚】【table】

【衚】【table】

【衚】【table】

【衚】【table】

【衚】【table】

【衚】【table】

【衚】【table】 【図面の簡単な説明】[Brief explanation of the drawing]

第図は合成䟋で埗られた−眮換−クロロ
アセトアニリドの1H−NMRのチダヌトを瀺す。
FIG. 1 shows a 1 H-NMR chart of N-substituted-chloroacetanilide obtained in Synthesis Example 1.

Claims (1)

【特蚱請求の範囲】  䞋蚘䞀般匏 䜆し、匏䞭R1R2及びR3は同皮又は異皮の
氎玠原子、ハロゲン原子、アルキル基、アルコキ
シ基、アルキルチオ基、アルコキシアルキル基、
又はアルキルチオアルキル基を瀺し、R4は氎玠
原子又はアルキル基を瀺し、R5R6及びR7は同
皮又は異皮の氎玠原子、ハロゲン原子、アルキル
基、アルケニル基、アルキニル基、アルコキシ
基、又はアルキルチオ基を瀺す。 で衚わされる−眮換−クロロアセトアニリドに
察しお、でんぷん類を重量で0.5〜500倍混合する
こずを特城ずする陀草剀組成物。
[Claims] 1. The following general formula (However, in the formula, R 1 , R 2 and R 3 are the same or different hydrogen atoms, halogen atoms, alkyl groups, alkoxy groups, alkylthio groups, alkoxyalkyl groups,
or represents an alkylthioalkyl group, R 4 represents a hydrogen atom or an alkyl group, and R 5 , R 6 and R 7 represent the same or different hydrogen atoms, halogen atoms, alkyl groups, alkenyl groups, alkynyl groups, alkoxy groups, or Indicates an alkylthio group. 1. A herbicidal composition characterized in that 0.5 to 500 times by weight of starch is mixed with N-substituted-chloroacetanilide represented by the following formula.
JP59256481A 1984-12-06 1984-12-06 Herbicide composition Granted JPS61134302A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP59256481A JPS61134302A (en) 1984-12-06 1984-12-06 Herbicide composition

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP59256481A JPS61134302A (en) 1984-12-06 1984-12-06 Herbicide composition

Publications (2)

Publication Number Publication Date
JPS61134302A JPS61134302A (en) 1986-06-21
JPH053444B2 true JPH053444B2 (en) 1993-01-14

Family

ID=17293235

Family Applications (1)

Application Number Title Priority Date Filing Date
JP59256481A Granted JPS61134302A (en) 1984-12-06 1984-12-06 Herbicide composition

Country Status (1)

Country Link
JP (1) JPS61134302A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017146147A1 (en) * 2016-02-23 2017-08-31 䞉井化孊アグロ株匏䌚瀟 Water-surface-floating granular composition

Also Published As

Publication number Publication date
JPS61134302A (en) 1986-06-21

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