JPH07285926A - Method for producing chloroalkylsulfonyl chloride - Google Patents

Method for producing chloroalkylsulfonyl chloride

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Publication number
JPH07285926A
JPH07285926A JP1179495A JP1179495A JPH07285926A JP H07285926 A JPH07285926 A JP H07285926A JP 1179495 A JP1179495 A JP 1179495A JP 1179495 A JP1179495 A JP 1179495A JP H07285926 A JPH07285926 A JP H07285926A
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JP
Japan
Prior art keywords
formula
added
producing
mmol
compound
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.)
Granted
Application number
JP1179495A
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Japanese (ja)
Other versions
JP3618815B2 (en
Inventor
Tatsuo Tsuri
達男 釣
Saichi Matsumoto
佐市 松本
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Shionogi and Co Ltd
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Shionogi and Co Ltd
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Abstract

PURPOSE:To provide a method for safely and efficiently producing an intermediate for synthesizing compounds important in the fields of medicine, pharmacy, agriculture, etc. CONSTITUTION:A method for producing a chloroalkylsulfonyl chloride represented by formula: Cl-(CH2)n-SO2-Cl [(n) is an integer of 2-8] is characterized by reacting a hydroxyalkylsulfonic acid derivative of formula: HO-(CH2)n-M [M is alkali metal or alkaline earth metal; (n) is the same as the above] with a chlorinating agent in the presence of a Lewis acid.

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【産業上の利用分野】本発明は式(I):The present invention relates to the formula (I):

【化3】 Cl−(CH2n−SO2−Cl (I) (式中、nは2〜8の整数を表す)で示されるクロロア
ルキルスルホニルクロリドの製造方法に関する。
Embedded image The present invention relates to a method for producing a chloroalkylsulfonyl chloride represented by Cl— (CH 2 ) n —SO 2 —Cl (I) (wherein n represents an integer of 2 to 8).

【0002】[0002]

【従来技術と発明が解決すべき課題】式(I)で示され
るクロロアルキルスルホニルクロリドは、医薬や農薬と
して重要な様々な有機化合物の合成中間体として有用で
ある。例えば、この化合物(I)は、式(III):
BACKGROUND OF THE INVENTION Chloroalkylsulfonyl chloride represented by the formula (I) is useful as a synthetic intermediate for various organic compounds important as pharmaceuticals and agricultural chemicals. For example, the compound (I) has the formula (III):

【化4】 [式中、mは0、1または2;Dは、 >N−または >
CH−;R1およびR2は、それぞれ独立して水素、低級
アルキルまたは低級アルコキシ;R3は、水素、低級ア
ルキル、シクロアルキル、低級アルコキシ;アリールア
ルキルオキシ、ヘテロアリールアルキルオキシ、低級ア
ルキルカルボニル、アリールカルボニル、置換または非
置換カルバモイル、または式: −(CH2q−R4 (式中、R4は、水素、ヒドロキシ、置換または非置換
アミノ、アリール、ヘテロアリール、ヒドロキシカルボ
ニルまたは低級アルキルオキシカルボニル;qは0〜3
の整数を表す)で示される基を表す]で示されるベンジ
リデン誘導体の合成における出発物質として有用であ
る。
[Chemical 4] [Wherein, m is 0, 1 or 2; D is> N- or>
CH-; R 1 and R 2 are each independently hydrogen, lower alkyl or lower alkoxy; R 3 is hydrogen, lower alkyl, cycloalkyl, lower alkoxy; arylalkyloxy, heteroarylalkyloxy, lower alkylcarbonyl, arylcarbonyl, substituted or unsubstituted carbamoyl or formula,: - (CH 2) q -R 4 ( wherein, R 4 is hydrogen, hydroxy, substituted or unsubstituted amino, aryl, heteroaryl, hydroxycarbonyl or lower alkyloxycarbonyl Carbonyl; q is 0-3
Represents a group represented by] and is useful as a starting material in the synthesis of a benzylidene derivative represented by

【0003】上記ベンジリデン誘導体(III)は、プ
ロスタグランディンE2(PGE2)並びに炎症メディエ
ーターであるロイコトリエン(LT)特にLTB4およ
びインターロイキン−1(IL−1)等のサイトカイン
類の産生を抑制すると同時に、浮腫抑制作用をも有し、
胃粘膜の損傷作用が低いことから、急性炎症のみならず
慢性関節リウマチ等の慢性炎症にも有効であると考えら
れており、優れた非ステロイド系抗炎症剤として期待さ
れている(特願平第5−268663号)。このベンジ
リデン誘導体は、式(I)で示されるクロロアルキルス
ルホニルクロリド誘導体を出発物質とし、下記の反応
式:
The above-mentioned benzylidene derivative (III) suppresses the production of cytokines such as prostaglandin E 2 (PGE 2 ) and inflammatory mediators leukotriene (LT), particularly LTB 4 and interleukin-1 (IL-1). At the same time, it also has the effect of suppressing edema,
Due to its low gastric mucosal damage, it is considered to be effective not only for acute inflammation but also for chronic inflammation such as rheumatoid arthritis, and is expected as an excellent non-steroidal anti-inflammatory drug (Japanese Patent Application No. No. 5-268663). This benzylidene derivative uses the chloroalkylsulfonyl chloride derivative represented by the formula (I) as a starting material and has the following reaction formula:

【化5】 (式中、m、R1、R2およびR3は上記定義と同意義で
あり、R5は水素またはヒドロキシ保護基を表す)に従
って製造することができる(特願平第5−268663
号)。
[Chemical 5] (Wherein, m, R 1 , R 2 and R 3 have the same meanings as defined above, and R 5 represents hydrogen or a hydroxy protecting group) (Japanese Patent Application No. 5-268663).
issue).

【0004】化合物(I)は、従来、1,3−プロパン
スルトン等のスルトン誘導体を出発物質として合成され
ていた[特公昭第 46 - 172号;J.O.C.3: 187 (193
8)]。例えば、下記の反応式:
Compound (I) has been conventionally synthesized by using a sultone derivative such as 1,3-propane sultone as a starting material [Japanese Patent Publication No. 46-172; JOC3: 187 (193).
8)]. For example, the following reaction formula:

【化6】 (式中、rは1または2を表す)に従い、1,3−プロ
パンスルトンまたは1,4−ブタンスルトンから合成す
ることができる(特公昭第 46 - 172号)。しかしなが
ら、この反応における1,3−プロパンスルトンには変
異原性、1,4−ブタンスルトンには毒性が指摘されて
おり[The Sigma-Aidlich Library of Chemical Safety
Data Edition II. Vol.II P.2951,p603 (1988) (著
者: Robert E. Lenga)]、これを用いる方法は実用化す
ることができない。1,3−プロパンスルトン誘導体を
用いずに化合物(I)を製造する方法として、1−ヒド
ロキシプロパン−3−スルホン酸ナトリウムを出発物質
とし、該化合物と五塩化リンとを四塩化炭素中で反応さ
せる方法が知られている[J.O.C.3: 187 (1938)]。し
かし、この方法によれば、出発物質9gから僅か2gの
目的物質が得られるにすぎず、実用化には適していなか
った。従って、式(I)の化合物の安全で効率の良い、
実用化に適した製造方法の開発が強く望まれていた。
[Chemical 6] (Wherein r represents 1 or 2), it can be synthesized from 1,3-propane sultone or 1,4-butane sultone (Japanese Patent Publication No. 46-172). However, mutagenicity of 1,3-propane sultone and toxicity of 1,4-butane sultone in this reaction have been pointed out [The Sigma-Aidlich Library of Chemical Safety].
Data Edition II. Vol.II P. 2951, p603 (1988) (Author: Robert E. Lenga)], a method using this cannot be put to practical use. As a method for producing compound (I) without using a 1,3-propane sultone derivative, sodium 1-hydroxypropane-3-sulfonate is used as a starting material, and the compound is reacted with phosphorus pentachloride in carbon tetrachloride. A known method is [JOC 3 : 187 (1938)]. However, according to this method, only 2 g of the target substance was obtained from 9 g of the starting substance, which was not suitable for practical use. Therefore, the safe and efficient compound of formula (I)
The development of a manufacturing method suitable for practical use has been strongly desired.

【0005】[0005]

【課題を解決する方法】本発明者らは、1−ヒドロキシ
アルキルスルホン酸のアルカリ金属またはアルカリ土類
金属塩を、一定条件下、クロル化剤で処理すると、極め
て効率良く化合物(I)を得ることができることを見い
だし、本発明を完成するに至った。即ち、本発明は、式
(II):
Means for Solving the Problems The present inventors obtain a compound (I) extremely efficiently when an alkali metal or alkaline earth metal salt of 1-hydroxyalkylsulfonic acid is treated with a chlorinating agent under certain conditions. As a result, they have completed the present invention. That is, the present invention provides formula (II):

【化7】 HO−(CH2n−SO3−M (II) (式中、Mはアルカリ金属またはアルカリ土類金属、n
は2〜8の整数を表す)で示されるヒドロキシアルキル
スルホン酸誘導体をルイス酸の存在下、クロル化剤と反
応させることを特徴とする、上記の式(I)で示される
クロロアルキルスルホニルクロリドの製造方法を提供す
るものである。
Embedded image HO- (CH 2) n -SO 3 -M (II) ( wherein, M is an alkali metal or alkaline earth metal, n
Represents an integer of 2 to 8), a hydroxyalkylsulfonic acid derivative represented by the formula (I) above is reacted with a chlorinating agent in the presence of a Lewis acid. A manufacturing method is provided.

【0006】アルカリ金属またはアルカリ土類金属の例
として、リチウム、ナトリウム、カリウム、カルシウ
ム、マグネシウム、が挙げられ、特にナトリウムが好ま
しい。本発明方法は、上記の定義に従う、すべての化合
物(I)の合成に適するが、特に、nが3または4であ
る化合物が好ましく、さらにnが3または4であり、か
つMがナトリウムである化合物が最も好ましい。本発明
方法に用い得るルイス酸としては、FeCl3、ZnCl2
AlCl3、SnCl2、TiCl4、BCl3等を例示すること
ができるが、ZnCl2が好ましい。クロル化剤として
は、PCl5、PCl3、POCl3、ClSO3H、SO2
l2、SOCl2、COCl2、(COCl)2、α,α−ジク
ロロメチルメチルエーテル、ジルコニウムテトラクロリ
ド等が挙げられるが、PCl5が好ましい。反応は、ルイ
ス酸を、クロル化剤に対し、モル比で約1〜10倍、好
ましくは約1〜4倍、より好ましくは約2〜3倍量用い
て行う。
Examples of alkali metals or alkaline earth metals include lithium, sodium, potassium, calcium and magnesium, with sodium being particularly preferred. The process according to the invention is suitable for the synthesis of all compounds (I) according to the above definition, but in particular the compounds in which n is 3 or 4 are preferred, further n is 3 or 4 and M is sodium. Most preferred are compounds. Examples of Lewis acids that can be used in the method of the present invention include FeCl 3 , ZnCl 2 ,
Examples include AlCl 3 , SnCl 2 , TiCl 4 , BCl 3 and the like, with ZnCl 2 being preferred. The chlorinating agent, PCl 5, PCl 3, POCl 3, ClSO 3 H, SO 2 C
Examples include l 2 , SOCl 2 , COCl 2 , (COCl) 2 , α, α-dichloromethyl methyl ether, zirconium tetrachloride, etc., but PCl 5 is preferred. The reaction is carried out by using the Lewis acid in a molar ratio of about 1 to 10 times, preferably about 1 to 4 times, and more preferably about 2 to 3 times the molar amount of the chlorinating agent.

【0007】本発明方法を実施するには、1)過剰量の
ルイス酸とクロル化剤中で化合物(II)を加熱処理し
た後、減圧蒸留するか、あるいは、2)過剰量のルイス
酸とクロル化剤中で化合物(II)を加熱処理した後、
冷却し、ジクロロエタンまたはトルエンと水を加えて加
熱還流する(発熱反応)。反応混合物中の生成物をセラ
イト等でろ取し、有機溶媒で抽出した後、硫酸ナトリウ
ム等の塩で処理し、減圧濃縮する。反応温度は、約10
0〜250℃、好ましくは110〜200℃、より好ま
しくは130〜180℃である。本発明方法によれば、
目的化合物(I)を収率約90%以上で得ることがで
き、生成物は、所望により、当該技術分野既知の方法で
精製される。本発明方法は、クロロアルキルスルホニル
クロリドの製造方法ではあるが、適当な試薬、例えば五
臭化リン−臭化亜鉛等を用いることにより、他のハロ置
換アルキルスルホニルハライドの製造方法にも応用でき
る、極めて有用な方法である。
To carry out the method of the present invention, 1) heat-treating compound (II) in an excess amount of Lewis acid and a chlorinating agent and then distilling under reduced pressure, or 2) adding an excess amount of Lewis acid. After heat treating the compound (II) in a chlorinating agent,
Cool, add dichloroethane or toluene and water and heat to reflux (exothermic reaction). The product in the reaction mixture is filtered with Celite or the like, extracted with an organic solvent, treated with a salt such as sodium sulfate, and concentrated under reduced pressure. The reaction temperature is about 10
The temperature is 0 to 250 ° C, preferably 110 to 200 ° C, more preferably 130 to 180 ° C. According to the method of the present invention,
The target compound (I) can be obtained in a yield of about 90% or more, and the product is optionally purified by a method known in the art. Although the method of the present invention is a method for producing chloroalkylsulfonyl chloride, it can also be applied to a method for producing other halo-substituted alkylsulfonyl halides by using an appropriate reagent, for example, phosphorus pentabromide-zinc bromide. This is a very useful method.

【0008】本発明方法に従って得られた化合物(I)
を、例えば、上記の反応式に示すように、アミンと反
応させ、スルホンアミド中間体を得、さらに塩基と反
応させ、化合物と化合物とを反応させることによ
り、医薬として有用なベンジリデン誘導体および
得ることができる。以下に実施例を示して、本発明をさ
らに具体的に説明するが、これらによって本発明の範囲
は限定されるものではない。
Compound (I) obtained according to the method of the present invention
, For example, as shown in the above reaction formula, to obtain sulfonamide intermediate 3 by reacting with amine 2 and further reacting with a base to react compound 4 and compound 6 to obtain benzylidene useful as a medicine. Derivatives 8 and 9 can be obtained. Hereinafter, the present invention will be described in more detail with reference to Examples, but the scope of the present invention is not limited thereto.

【0009】[0009]

【実施例】実施例1 3−クロロプロパンスルホニルクロリド ZnCl2(90%)(12.2g, 90mmol)を100mlの
フラスコに加え、さらに室温でPCl5(6.24g, 30m
mol)を加える。その混合物に1−ヒドロキシプロパンス
ルホン酸ナトリウム(3.24g, 20mmol)を加えたの
ち、直ちに160℃(油浴温度)にて1時間加熱還流す
る。そのまま減圧蒸留し、初留270mg(収率8%)お
よび主留3.13g(収率88%)を得る。総収量:3.
40g(収率96%) NMR:測定条件,200MHz,標準物質TMS δ:2.44〜2.62(2H,multiplet), 3.74(2
H,t,J=6.0Hz),3.83〜3.93(2H,m
ultiplet)
EXAMPLE 1 3-Chloropropanesulfonyl chloride ZnCl 2 (90%) (12.2 g, 90 mmol) was added to a 100 ml flask, and PCl 5 (6.24 g, 30 m) was added at room temperature.
mol) is added. Sodium 1-hydroxypropanesulfonate (3.24 g, 20 mmol) was added to the mixture, and the mixture was immediately heated under reflux at 160 ° C. (oil bath temperature) for 1 hour. It is distilled under reduced pressure as it is to obtain 270 mg of initial distillate (yield 8%) and 3.13 g of main distillate (yield 88%). Total yield: 3.
40 g (yield 96%) NMR: measurement conditions, 200 MHz, standard substance TMS δ: 2.44 to 2.62 (2H, multiplet), 3.74 (2
H, t, J = 6.0 Hz), 3.83 to 3.93 (2H, m
ultiplet)

【0010】実施例2 3−クロロプロパンスルホニル
クロリド ZnCl2(90%)(40.9g, 0.3mol)を300mlの
3径フラスコに加え、室温でPCl5(31.2g, 0.15
mol)を加える。1−ヒドロキシプロパンスルホン酸ナト
リウム(16.2g, 0.1mol)を加えたのち、150℃
(油浴温度)で30分間加熱する。冷却後、ジクロロエタ
ン(70ml)さらに水(70ml)を加え、20分間加熱還流
する。この反応は発熱反応である。冷後、セライト(1
0g)を加え、5分間攪拌したのち、セライトろ過(10
gのセライトを17G3グラスフィルターに詰めて使用)
する。セライト層をジクロロエタン(10ml×3)で洗っ
たのち、水(130ml)ジクロロエタン(50ml)を加え、
有機層を分離する。水層をジクロロエタン(20ml)で洗
った後、有機層を合わせて、飽和食塩水(100ml)で洗
う。Na2SO4(30g)を加え、30分間放置した後、減
圧濃縮し、粗生成物18.6gを得る。これを減圧蒸留
(75℃/0.2mmHg〜80℃/0.3mmHg)して、主留
15.6g(収率88%)を得る。 NMR:測定条件,200MHz,標準物質TMS δ:2.44〜2.62(2H,multiplet), 3.74(2
H,t,J=6.0Hz),3.83〜3.93(2H,m
ultiplet)
Example 2 3-Chloropropanesulfonyl chloride ZnCl 2 (90%) (40.9 g, 0.3 mol) was added to a 300 ml three-dimensional flask and PCl 5 (31.2 g, 0.15) was added at room temperature.
mol) is added. Sodium 1-hydroxypropanesulfonate (16.2 g, 0.1 mol) was added, and then 150 ° C.
Heat (oil bath temperature) for 30 minutes. After cooling, dichloroethane (70 ml) and water (70 ml) were added, and the mixture was heated under reflux for 20 minutes. This reaction is exothermic. After cooling, celite (1
0 g) was added and the mixture was stirred for 5 minutes, and then filtered through Celite (10
(Used by packing g of Celite in a 17G3 glass filter)
To do. After washing the Celite layer with dichloroethane (10 ml × 3), water (130 ml) and dichloroethane (50 ml) were added,
Separate the organic layer. The aqueous layer was washed with dichloroethane (20 ml), then the organic layers were combined and washed with saturated brine (100 ml). Na 2 SO 4 (30 g) was added, the mixture was allowed to stand for 30 minutes and then concentrated under reduced pressure to obtain 18.6 g of a crude product. Vacuum distillation
(75 ° C / 0.2 mmHg to 80 ° C / 0.3 mmHg) to obtain 15.6 g of main distillate (yield 88%). NMR: measurement conditions, 200 MHz, standard substance TMS δ: 2.44 to 2.62 (2H, multiplet), 3.74 (2
H, t, J = 6.0 Hz), 3.83 to 3.93 (2H, m
ultiplet)

【0011】実施例3 3−クロロプロパンスルホニル
クロリド 1−ヒドロキシプロパンスルホン酸ナトリウム1.62g
(10mmol)、PCl54g(20mmol)およびZnCl20.7g
(5mmol)を使用する以外は、実施例1と同様の方法で反
応し、標記化合物1.0g(56%)を得た。
Example 3 3-Chloropropanesulfonyl chloride Sodium 1-hydroxypropanesulfonate 1.62 g
(10 mmol), 4 g of PCl 5 (20 mmol) and 0.7 g of ZnCl 2
The reaction was performed in the same manner as in Example 1 except that (5 mmol) was used to obtain 1.0 g (56%) of the title compound.

【0012】実施例4 2−クロロエタンスルホニルク
ロリド 1−ヒドロキシエタンスルホン酸ナトリウム(イセチオ
ン酸ナトリウム)2.96g(20mmol)、PCl5
6.24g(30mmol)およびZnCl212.2g
(90mmol)を使用する以外は、実施例1と同様の方法
で反応し、標記化合物2.36g(72%)を得た。
(60℃/0.5mmHg) NMR:測定条件,300MHz、標準物質 TMS δ:3.97〜4.10(4H,multiplet)
Example 4 2-chloroethanesulfonyl chloride 2.96 g (20 mmol) of sodium 1-hydroxyethanesulfonate (sodium isethionate), PCl 5
6.24 g (30 mmol) and ZnCl 2 12.2 g
The reaction was performed in the same manner as in Example 1 except that (90 mmol) was used to obtain 2.36 g (72%) of the title compound.
(60 ° C./0.5 mmHg) NMR: measurement conditions, 300 MHz, standard substance TMS δ: 3.97 to 4.10 (4H, multiplet)

【0013】実施例で製造した3−クロロアルキルスル
ホニルクロリドを用い、以下の参考例に記載のごとく、
ベンジリデン化合物(式IIIにおいて、mは1;Dは
>N−;R1およびR2は、それぞれt−ブチル;R3
エチル)を製造することができる。参考例1 N−エチル−1,2−イソチアゾリジン−
1,1−ジオキシド()
Using the 3-chloroalkylsulfonyl chloride prepared in the examples, as described in the following reference examples,
A benzylidene compound (in formula III, m is 1; D is>N-; R 1 and R 2 are each t-butyl; R 3 is ethyl) can be prepared. Reference Example 1 N-ethyl-1,2-isothiazolidine-
1,1-dioxide ( 4 )

【化8】 [Chemical 8]

【0014】3−クロルプロピルスルホニルクロライド
1(6.1g,34.5mmol)のエーテル溶液(25ml)中にエ
チルアミン(70%水溶液、4.4g,68.3mmol)を氷
冷、撹拌下に滴下し、約15分間で滴下終了後、室温に
て1時間撹拌した。反応液を減圧下に濃縮して、残渣に
ベンゼン100mlを添加し減圧下に溶媒を留去した後、
残渣にエーテル150mlを加えて不溶物を濾別し、エー
テルを減圧下に留去し、粗製のN−エチル−3−クロル
プロピルスルホンアミド中間体をmp30−32℃の無
色結晶として得た。収量6.96g(〜100%)。本中
間体(6.96g,34.5mmol)のTHF溶液(50ml)
中に水素化ナトリウム(60%油性,1.52g,38.0m
mol)を氷冷撹拌下に徐々に添加し、15分間で添加を終
了した。次いで、室温で30分間撹拌を続行した。反応
液にエーテル(50ml)を添加して不溶物を濾別後、溶媒
を減圧下に留去し、目的化合物を淡黄色油状物として
得た。収量4.93g(96%) IR(CHCl3)cm-1:3018,2976,2868,14
52,1306,1220,1179,1129,1015 NMR(CDCl3)δ:1.24(3H,t,J=7.4Hz,C
3),2.28−2.42(2H,m,CH2),3.10(2H,
q,J=7.4Hz,CH2),3.15(2H,t,J=7.6Hz,
CH2),3.22−3.29(2H,m,CH2)
Ethylamine (70% aqueous solution, 4.4 g, 68.3 mmol) was added dropwise to a solution of 3-chloropropylsulfonyl chloride 1 (6.1 g, 34.5 mmol) in ether (25 ml) under ice cooling and stirring. After completion of dropping in about 15 minutes, the mixture was stirred at room temperature for 1 hour. The reaction solution was concentrated under reduced pressure, 100 ml of benzene was added to the residue, and the solvent was distilled off under reduced pressure.
To the residue was added 150 ml of ether, the insoluble material was filtered off, and the ether was distilled off under reduced pressure to obtain a crude N-ethyl-3-chloropropylsulfonamide intermediate 3 as colorless crystals of mp 30-32 ° C. Yield 6.96 g (-100%). This intermediate 3 (6.96 g, 34.5 mmol) in THF (50 ml)
Sodium hydride in (60% oily, 1.52g, 38.0m
(mol) was gradually added under ice-cooling stirring, and the addition was completed in 15 minutes. Then stirring was continued for 30 minutes at room temperature. Ether (50 ml) was added to the reaction solution, the insoluble material was filtered off, and the solvent was evaporated under reduced pressure to obtain the target compound 4 as a pale yellow oil. Yield 4.93 g (96%) IR (CHCl 3 ) cm -1 : 3018,2976,2868,14
52,1306,1220,1179,1129,1015 NMR (CDCl 3 ) δ: 1.24 (3H, t, J = 7.4Hz, C
H 3), 2.28-2.42 (2H, m, CH 2), 3.10 (2H,
q, J = 7.4 Hz, CH 2 ), 3.15 (2 H, t, J = 7.6 Hz,
CH 2), 3.22-3.29 (2H, m, CH 2)

【0015】参考例2 (E)−2−エチル−5−(3,5
−ジ−tert−ブチル−4−ヒドロキシ)ベンジリデン−
1,2−イソチアゾリジン−1,1−ジオキサイド()及
びその(Z)−異性体(
Reference Example 2 (E) -2-Ethyl-5- (3,5
-Di-tert-butyl-4-hydroxy) benzylidene-
1,2-isothiazolidine-1,1-dioxide ( 8 ) and its (Z) -isomer ( 9 )

【化9】 氷溶中、ジイソプロピルアミン(15.5ml,110.6m
mol)にn−ブチルリチウムのn−ヘキサン溶液(1.6M,
69.5ml,111mmol)を20分間で撹拌下に滴下し、
滴下終了後に更に15分間撹拌する。反応液を−78℃
に冷却し、THF100mlを加え、N−エチル−1,2
−イソチアゾリジン−1,1−ジオキサイド(15g,
100.5mmol)、3,5−ジ−tert−ブチル−4−メト
キシメトキシベンズアルデヒド(25g,90.5mmol)
及びHMPA(30ml)のTHF溶液(70ml)を撹拌下に
15分間で滴下した後、同温度下で30分間撹拌を続行
した。反応液を室温まで昇温させた後、冷2N−HCl
(100ml)中に投入し、酢酸エチル(250ml)で2回抽
出し、酢酸エチル層を希炭酸水素ナトリウム水溶液(3
00ml)、次いで飽和食塩水(300ml)で洗浄後、無水
硫酸ナトリウムで乾燥した。溶媒を減圧留去し残渣をシ
リカゲルカラムクロマトグラフィーに付し、n−ヘキサ
ン−酢酸エチル(4:1〜1:1)で溶出して精製し、アル
ドール付加体を無色固体として得た。収量21.3g
(55%)。この付加体(8.5g,19.9mmol)のトル
エン溶液(150ml)にp−トルエンスルホン酸水和物
(2.49g,13mmol)を添加して30分間加熱還流した
後、反応液を希炭酸水素ナトリウム水溶液(150ml)中
に投入して酢酸エチル(150ml)で2回抽出し、有機層
を水(150ml)、次いで飽和食塩水(150ml)で洗浄
後、無水硫酸ナトリウムで乾燥した。溶媒を減圧下に留
去し残渣をシリカゲルカラムクロマトグラフィーに付
し、n−ヘキサン−酢酸エチル(3:1)で溶出する画分よ
り順次目的化合物及びを得た。収量:2.59g(3
6%);:376mg(7%)。
[Chemical 9] While melting in ice, diisopropylamine (15.5 ml, 110.6 m
mol) in n-hexane solution of n-butyllithium (1.6 M,
(69.5 ml, 111 mmol) was added dropwise over 20 minutes with stirring,
After the dropping is completed, the mixture is stirred for another 15 minutes. The reaction solution is -78 ° C.
After cooling to room temperature, 100 ml of THF was added, and N-ethyl-1,2
-Isothiazolidine-1,1-dioxide 4 (15 g,
3,5-di-tert-butyl-4-methoxymethoxybenzaldehyde 6 (25 g, 90.5 mmol)
And a solution of HMPA (30 ml) in THF (70 ml) were added dropwise with stirring over 15 minutes, and then stirring was continued at the same temperature for 30 minutes. After warming the reaction solution to room temperature, cold 2N-HCl
(100 ml), extracted twice with ethyl acetate (250 ml), and the ethyl acetate layer was diluted with aqueous sodium hydrogen carbonate solution (3
(00 ml) and then saturated saline (300 ml), and dried over anhydrous sodium sulfate. The solvent was evaporated under reduced pressure, and the residue was subjected to silica gel column chromatography and eluted with n-hexane-ethyl acetate (4: 1 to 1: 1) for purification to obtain an aldol adduct 7 as a colorless solid. Yield 21.3g
(55%). P-Toluenesulfonic acid hydrate was added to a toluene solution (150 ml) of the adduct 7 (8.5 g, 19.9 mmol).
(2.49 g, 13 mmol) was added and the mixture was heated under reflux for 30 minutes, then the reaction mixture was poured into a dilute aqueous sodium hydrogen carbonate solution (150 ml) and extracted twice with ethyl acetate (150 ml), and the organic layer was washed with water ( The extract was washed with 150 ml) and then with saturated saline (150 ml) and dried over anhydrous sodium sulfate. The solvent was evaporated under reduced pressure, the residue was subjected to silica gel column chromatography, and the target compounds 9 and 8 were sequentially obtained from the fractions eluted with n-hexane-ethyl acetate (3: 1). Yield 8 : 2.59g (3
6%); 9 : 376 mg (7%).

【0016】:mp135−137℃ IR(KBr)cm-1:3610,3440,2970,288
0,1645,1597,1430,1290,1173,1
151,1139 NMR(CDCl3)δ:1.29(3H,t,J=7.2Hz,C
3),1.45(18H,s,2×Bu),3.07−3.19
(4H,m,CH2),3.28(2H,q,J=7.2Hz,CH2),
5.50(1H,s,OH),7.24−7.26(3H,m,2×a
romatic-H,CH) 元素分析値(C2031NO3S) 計算値:C,65.71;H,8.55;N,3.83;S,8.
77 実測値:C,65.65;H,8.43;N,3.85;S,8.
78
8 : mp135-137 ° C. IR (KBr) cm −1 : 3610,3440,2970,288
0,1645,1597,1430,1290,1173,1
151,1139 NMR (CDCl 3 ) δ: 1.29 (3H, t, J = 7.2Hz, C
H 3), 1.45 (18H, s, 2 × Bu t), 3.07-3.19
(4H, m, CH 2 ), 3.28 (2H, q, J = 7.2Hz, CH 2 ),
5.50 (1H, s, OH), 7.24-7.26 (3H, m, 2xa
romatic-H, CH) Elemental analysis (C 20 H 31 NO 3 S ) Calcd: C, 65.71; H, 8.55 ; N, 3.83; S, 8.
77 Found: C, 65.65; H, 8.43; N, 3.85; S, 8.
78

【0017】:mp137−138℃ IR(KBr)cm-1:3560,2975,1637,160
0,1431,1289,1275,1168,1150,1
111 NMR(CDCl3)δ:1.26(3H,t,J=7.2Hz,C
3),1.45(18H,s,2×Bu),3.00(2H,dt,
J=2.0,6.0Hz,,CH2),3.15(2H,q,J=7.
2Hz,CH2),3.25(2H,t,J=6.0Hz,CH2),
5.47(1H,s,OH),6.73(1H,t,J=2.0Hz,
CH),7.52(2H,s,2×aromatic−H) 元素分析値(C2031NO3S) 計算値:C,65.71;H,8.55;N,3.83;S,8.
77 実測値:C,65.68;H,8.43;N,3.61;S,8.
66
9 : mp 137-138 ° C. IR (KBr) cm −1 : 3560,2975,1637,160
0,1431,1289,1275,1168,1150,1
111 NMR (CDCl 3 ) δ: 1.26 (3H, t, J = 7.2Hz, C
H 3 ), 1.45 (18 H, s, 2 × Bu t ), 3.00 (2 H, dt,
J = 2.0, 6.0 Hz ,, CH 2 ), 3.15 (2H, q, J = 7.
2Hz, CH 2 ), 3.25 (2H, t, J = 6.0Hz, CH 2 ),
5.47 (1H, s, OH), 6.73 (1H, t, J = 2.0Hz,
CH), 7.52 (2H, s , 2 × aromatic-H) Elemental analysis (C 20 H 31 NO 3 S ) Calcd: C, 65.71; H, 8.55 ; N, 3.83; S, 8.
77 Found: C, 65.68; H, 8.43; N, 3.61; S, 8.
66

【0018】上記参考例2で製造した化合物は、インビ
トロでのラット滑膜細胞におけるPGE2産生阻害作
用、ラット腹腔細胞におけるLTB4産生阻害作用、お
よびTHP−1細胞におけるLPS刺激下のIL−1産
生阻害作用に関する実験、およびインビボでのラットカ
ラゲニン足浮腫抑制作用、およびラット胃粘膜傷害形成
阻害作用に関する実験で抗炎症剤として優れた特性を示
した(特願平第05−268663号)。
The compound prepared in Reference Example 2 above inhibits PGE 2 production in rat synovial cells in vitro, inhibits LTB 4 production in rat peritoneal cells, and IL-1 under LPS stimulation in THP-1 cells. It showed excellent properties as an anti-inflammatory agent in experiments on production inhibitory action, in vivo rat carrageenin paw edema inhibitory action, and rat gastric mucosal lesion formation inhibitory action (Japanese Patent Application No. 05-268663).

【0019】[0019]

【発明の効果】本発明方法によれば、クロロアルキルス
ルホニルクロリドを安全に、効率良く製造でき、医学、
薬学、農学等の各分野で重要な化合物の合成に寄与する
ことができる。
EFFECTS OF THE INVENTION According to the method of the present invention, chloroalkylsulfonyl chloride can be produced safely and efficiently.
It can contribute to the synthesis of important compounds in each field such as pharmacy and agriculture.

Claims (5)

【特許請求の範囲】[Claims] 【請求項1】 式(II): 【化1】 HO−(CH2n−SO3−M (II) (式中、Mはアルカリ金属またはアルカリ土類金属、n
は2〜8の整数を表す)で示されるヒドロキシアルキル
スルホン酸誘導体をルイス酸の存在下、クロル化剤と反
応させることを特徴とする式(I): 【化2】 Cl−(CH2n−SO2−Cl (I) (式中、nは上記と同意義である)で示されるクロロア
ルキルスルホニルクロリドの製造方法。
1. Formula (II): embedded image HO— (CH 2 ) n —SO 3 —M (II) (wherein M is an alkali metal or alkaline earth metal, n
Represents an integer of 2 to 8), a hydroxyalkyl sulfonic acid derivative represented by the formula (I): embedded image wherein Cl— (CH 2 ) is reacted with a chlorinating agent in the presence of a Lewis acid. n -SO 2 -Cl (I) (in wherein, n is as defined above) the method of producing chloroalkyl sulfonyl chloride represented by.
【請求項2】 ルイス酸の使用量がクロル化剤に対し、
モル比で2〜3倍量である請求項1記載の方法。
2. The amount of Lewis acid used relative to the chlorinating agent is
The method according to claim 1, wherein the amount is 2-3 times the molar ratio.
【請求項3】 nが3または4である請求項1又は2に
記載の方法。
3. The method according to claim 1 or 2, wherein n is 3 or 4.
【請求項4】 Mがアルカリ金属である請求項1〜3の
いずれかに記載の方法。
4. The method according to claim 1, wherein M is an alkali metal.
【請求項5】 Mがナトリウムである請求項4に記載の
方法。
5. The method of claim 4, wherein M is sodium.
JP01179495A 1994-02-23 1995-01-27 Method for producing chloroalkylsulfonyl chloride Expired - Fee Related JP3618815B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
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Application Number Priority Date Filing Date Title
JP2520994 1994-02-23
JP6-25209 1994-02-23
JP01179495A JP3618815B2 (en) 1994-02-23 1995-01-27 Method for producing chloroalkylsulfonyl chloride

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998042660A1 (en) * 1997-03-26 1998-10-01 Azwell Inc. Process for producing halogenoalkylsulfonamide derivatives
WO2013047162A1 (en) * 2011-09-26 2013-04-04 東洋紡株式会社 Method for producing chloroalkylsulfonyl chloride

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998042660A1 (en) * 1997-03-26 1998-10-01 Azwell Inc. Process for producing halogenoalkylsulfonamide derivatives
WO2013047162A1 (en) * 2011-09-26 2013-04-04 東洋紡株式会社 Method for producing chloroalkylsulfonyl chloride
JPWO2013047162A1 (en) * 2011-09-26 2015-03-26 東洋紡株式会社 Method for producing chloroalkylsulfonyl chloride

Also Published As

Publication number Publication date
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