JPH04507406A - 2,6―ジクロルキノキサリンの製法 - Google Patents
2,6―ジクロルキノキサリンの製法Info
- Publication number
- JPH04507406A JPH04507406A JP51067990A JP51067990A JPH04507406A JP H04507406 A JPH04507406 A JP H04507406A JP 51067990 A JP51067990 A JP 51067990A JP 51067990 A JP51067990 A JP 51067990A JP H04507406 A JPH04507406 A JP H04507406A
- Authority
- JP
- Japan
- Prior art keywords
- chloro
- hydroxyquinoxaline
- oxide
- solution
- sodium salt
- 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.)
- Pending
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D241/00—Heterocyclic compounds containing 1,4-diazine or hydrogenated 1,4-diazine rings
- C07D241/36—Heterocyclic compounds containing 1,4-diazine or hydrogenated 1,4-diazine rings condensed with carbocyclic rings or ring systems
- C07D241/50—Heterocyclic compounds containing 1,4-diazine or hydrogenated 1,4-diazine rings condensed with carbocyclic rings or ring systems with hetero atoms directly attached to ring nitrogen atoms
- C07D241/52—Oxygen atoms
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D241/00—Heterocyclic compounds containing 1,4-diazine or hydrogenated 1,4-diazine rings
- C07D241/36—Heterocyclic compounds containing 1,4-diazine or hydrogenated 1,4-diazine rings condensed with carbocyclic rings or ring systems
- C07D241/38—Heterocyclic compounds containing 1,4-diazine or hydrogenated 1,4-diazine rings condensed with carbocyclic rings or ring systems with only hydrogen or carbon atoms directly attached to the ring nitrogen atoms
- C07D241/40—Benzopyrazines
- C07D241/44—Benzopyrazines with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to carbon atoms of the hetero ring
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Plural Heterocyclic Compounds (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE3925969.2 | 1989-08-05 | ||
DE19893925969 DE3925969A1 (de) | 1989-08-05 | 1989-08-05 | Verfahren zur herstellung von 2,6-dichlorchinoxalin |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH04507406A true JPH04507406A (ja) | 1992-12-24 |
Family
ID=6386594
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP51067990A Pending JPH04507406A (ja) | 1989-08-05 | 1990-07-16 | 2,6―ジクロルキノキサリンの製法 |
Country Status (5)
Country | Link |
---|---|
JP (1) | JPH04507406A (de) |
CA (1) | CA2064564A1 (de) |
DE (1) | DE3925969A1 (de) |
IN (1) | IN169080B (de) |
WO (1) | WO1991001977A1 (de) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN100345831C (zh) * | 2005-11-10 | 2007-10-31 | 吴永虎 | 高纯度2,6-二氯喹喔啉的制备方法 |
CN101914069A (zh) * | 2010-07-29 | 2010-12-15 | 安徽丰乐农化有限责任公司 | 6-氯-2-羟基喹喔啉的氯化新工艺 |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4636562A (en) * | 1982-05-07 | 1987-01-13 | E. I. Du Pont De Nemours And Company | Process for preparing 6-halo-2-chloroquinoxaline |
IL86416A (en) * | 1987-06-19 | 1993-07-08 | Uniroyal Chem Co Inc | Process for the preparation of 2-quinoxalinol derivatives |
US4814444A (en) * | 1987-06-19 | 1989-03-21 | Uniroyal Chemical Company, Inc. | Process for the selective reduction of 2-hydroxyquinoxaline-4-oxides |
-
1989
- 1989-08-05 DE DE19893925969 patent/DE3925969A1/de not_active Withdrawn
-
1990
- 1990-07-16 JP JP51067990A patent/JPH04507406A/ja active Pending
- 1990-07-16 CA CA 2064564 patent/CA2064564A1/en not_active Abandoned
- 1990-07-16 WO PCT/EP1990/001162 patent/WO1991001977A1/de not_active Application Discontinuation
- 1990-07-18 IN IN601/CAL/90A patent/IN169080B/en unknown
Also Published As
Publication number | Publication date |
---|---|
WO1991001977A1 (de) | 1991-02-21 |
IN169080B (de) | 1991-08-31 |
CA2064564A1 (en) | 1991-02-06 |
DE3925969A1 (de) | 1991-02-07 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JPH0329780B2 (de) | ||
JPH04507406A (ja) | 2,6―ジクロルキノキサリンの製法 | |
JPS5855485A (ja) | グアニンの精製法 | |
US3876703A (en) | Purification of p-aminophenol | |
US4264525A (en) | Stepwise reduction of p-nitrophenol | |
JPH10158206A (ja) | 1,1,1−トリス(4−ヒドロキシフェニル)アルカンの精製法 | |
JP3106568B2 (ja) | 2−アミノ−4,6−ジクロロ−5−アルキルフェノール類の製造方法 | |
JP3700190B2 (ja) | 2−インダニルメチルアミンの製造法並びにn−ベンジル−n−(2−インダニルメチル)アミン及びその製造法 | |
US6395903B1 (en) | Process for the preparation of 2,3-pyridinedicarboxylic acids | |
US1930753A (en) | Chlorination of cresidine | |
JPH10505849A (ja) | 3,4−ジヒドロキシ−5−ニトロベンズアルデヒドの新規な製造方法 | |
US6242646B1 (en) | Method of producing 2,4-dichloro-5-hydroxyacetanilide | |
JPH06737B2 (ja) | アルキル―〔3クロロフェニル〕―スルホンの製造方法 | |
US3177225A (en) | 1, 2, 3, 4, 5, 6-hexachloro-7-nitronaphthalene and certain derivatives thereof | |
JP2872444B2 (ja) | 銅化合物含有ビス(4−アミノフェニル)スルホン系化合物の精製方法 | |
IT9022507A1 (it) | Procedimento per la preparazione di n-(2-ammino-3, 5-dibromo-benzil) trans-4-amminocicloesanolo | |
JPS60130568A (ja) | 7−アルキル−8−ハイドロキシキノリンの製造方法 | |
JPH11310558A (ja) | 2―アミノ―4,5,3’,4’―テトラメトキシベンゾフェノンの製造方法 | |
HU208949B (en) | Process for producing 4-trans-/4-isopropyliden-amino/-cyclohexanol | |
JPS6157555A (ja) | 2‐ヒドロキシ‐5,6,7,8‐テトラヒドロカルバゾールの製法、2‐ヒドロキシ‐5,6,7,8‐テトラヒドロカルバゾールのアルカリ‐及びアルカリ土類塩及び該化合物を使用する方法 | |
BE824491R (fr) | Procede de preparation de derives de 1,8-naphthyridine | |
CH373038A (fr) | Procédé de préparation de nouveaux éthers de pipéridyl-2 aryl méthanols | |
JP2002179650A (ja) | イサチンビス(o−クレゾール)の製造方法 | |
JPH07196610A (ja) | 5−クロロ−2−オキシンドールの製造法 | |
TWI252848B (en) | Process for the preparation of 5-formylphthalide |