CAS: 19952-47-7; 2-Amino-4-Chlorobenzothiazole

上下游产品

CAS号5344-82-1 2-氯苯基硫脲 | CAS号4947-89-1 对氯苯基硫脲 | CAS号333-20-0 硫氰酸钾 | CAS号95-51-2 2-氯苯胺 | CAS号7471-03-6 2-氨基-4-羟基苯并噻唑 | CAS号109-86-4 乙二醇甲醚 | CAS号137-04-2 2-氯苯胺盐酸盐 | CAS号27058-83-9 2-氨基-4-氯苯并噻唑氢溴化物 | CAS号110704-20-6 Benzothiazole, ... | CAS号111931-61-4 N-(1,3-benzothi... | CAS号3622-30-8 2,4-二氯苯并噻唑 | CAS号1457-46-1 3-苯基-2-硫酮-1,3-噻... | CAS号117844-39-0 1,2-bis(4-chlor... | CAS号3622-40-0 2-溴-4-氯苯并噻唑 | CAS号3048-45-1 4-氯苯并噻唑 | CAS号112446-65-8 N'-(4-chloro-1,... | CAS号76462-11-8 9-chloro-1,3-di... | CAS号76462-13-0 2,4-dibromo-9-c...

邻氯苯基硫脲置于二氯化二硫体系中,用78%的收率获得2-氨基-4-氯苯并噻唑
参考文献:苯并噻唑的电子轰击练习曲†
标题:苯并噻唑的电子轰击练习曲†
摘要:苯并噻唑衍生物的电子碰撞裂解研究
Doi:10.1002/hlca.19800630318

专利信息

专利号:US-6531470-B1
优先权日:1998-01-23
标题:Oxazolidinone combinatorial libraries, compositions and methods of preparation
发明人：GORDEEV MIKHAIL F; LUEHR GARY W; PATEL DINESH V; NI ZHI-JIE; GORDON ERIC
权利人:UPJOHN CO
摘要:Oxazolidinones and methods for their synthesis are provided. Also provided are combinatorial libraries comprising oxazolidinones, and methods to prepare the libraries. Further provided are methods of making biologically active oxazolidinones as well as pharmaceutically acceptable compositions comprising the oxazolidinones. The methods of library preparation include the attachment of oxazolidinones to a solid support. The methods of compound preparation in one embodiment involve the reaction of an iminophosphorane with a carbonyl containing polymeric support.

专利号:US-4118384-A
优先权日:1976-02-21
标题 :Process for preparation of azo dyestuffs by coupling in presence of aromatic sulphonic acid-formaldehyde reaction product
发明人：MOLLS HANS-HEINZ; SCHIWY WILLY; HORNLE REINHOLD; NEBELING REINHARD
权利人:BAYER AG
摘要:Dyestuff dispersions and dyestuff solutions free from salt or at least having a low salt content are obtained in that the diazotization is carried out with addition of free dispersing agent acid to which, after the synthesis, either no basic agents are added or basic agents are added only up to a pH value of 3. The disclosed process gives dyestuff compositions of low salt content and results in readily dispersible dyestuffs when water insoluble dyestuffs are prepared and stable solutions when water soluble dyestuffs are prepared. The process is widely applicable and chemical constitution of the dyestuffs is conventional.

专利号:US-4035350-A
优先权日:1975-01-30
标 题:Process for the preparation of water-soluble azo dyestuffs by reacting an aromatic amine and a coupling component with alkali metal nitrite or alkyl nitrite in the absence of acid
发明人：LANDLER JOSEF; WORFEL ERHARD
权利人:HOECHST AG
摘要:A new and very advantageous Process had been found for the preparation of azo dyestuffs by diazotation and coupling in which the synthesis is carried out without the hitherto usual addition of an acid, with the proviso that at least one of the diazo and coupling components contains at least one acid group. Besides the saving of reaction material and subsequently of alkali for neutralization of the reaction medium and isolation of the dyestuff, highly concentrated solutions of the dyestuff and salt-free or practically salt-free dyestuffs can be obtained, and waste-water is no longer charged with big amounts of salts.

专利号:US-6562844-B2
优先权日:1998-01-23
标 题:Oxazolidinone combinatorial libraries, compositions and methods of preparation
发明人：GORDEEV MIKHAIL F; LUEHR GARY W; PATEL DINESH V; NI ZHI-JIE; GORDON ERIC
权利人:UPJOHN CO
摘要:Oxazolidinones and methods for their synthesis are provided. Also provided are combinatorial libraries comprising oxazolidinones, and methods to prepare the libraries. Further provided are methods of making biologically active oxazolidinones as well as pharmaceutically acceptable compositions comprising the oxazolidinones. The methods of library preparation include the attachment of oxazolidinones to a solid support. The methods of compound preparation in one embodiment involve the reaction of an iminophosphorane with a carbonyl containing polymeric support.

专利号:US-4223031-A
优先权日:1978-05-05
标题 :Azolopyrimidinones
发明人：COVINGTON ROBERT R; TEMPLE JR DAVIS L; YEVICH JOSEPH P
权利人:MEAD JOHNSON & CO
摘要:6-(1H-Tetrazol-5-yl)thiozolo[3,2-a]pyrimidin-5-ones, 3-(1H-tetrazol-5-yl)-4H-pyrimido[2,1-b]benzothiazol-4-ones, and the corresponding imidazo- and triazolo-pyrimidines, thiones, and imines are useful as antiallergy and antiasthmatic compounds by virtue of their inhibitory action on the immediate hypersensitivity reaction in mammals and relaxant action on the tracheal muscle. Intermediates in the synthesis of these substances from 2-aminoazoles and ethoxy-methylene malononitrile also have smooth muscle relaxant and immediate hypersensitivity reaction inhibitory activity.

专利号:US-4491587-A
优先权日:1978-05-05
标 题 :Tetrazole derivatives
发明人：COVINGTON ROBERT R; TEMPLE JR DAVIS L; YEVICH JOSEPH P
权利人:MEAD JOHNSON & CO
摘要:6-(1_H-Tetrazol-5-yl)thiazolo[3,2-a]pyrimidin-5-ones, 3-(1_H-tetrazol-5-yl)-4_H-pyrimido[2,1-b]benzothiazol-4-ones, and the corresponding imidazo- and triazolo- pyrimidines, thiones, and imines are useful as antiallergy and antiasthmatic compounds by virtue of their inhibitory action on the immediate hypersensitivity reaction in mammals and relaxant action on the tracheal muscle. Intermediates in the synthesis of these substances from 2-aminoazoles and ethoxymethylene malononitrile also have smooth muscle relaxant and immediate hypersensitivity reaction inhibitory activity.