Journal of the Chemical Society. Perkin transactions I p. 2387 - 2391 (1980)
Update date:2022-08-05
Topics:
Hawkins, David
Lindley, John M.
McRobbie, Ian M.
Meth-Cohn, Otto
2-(2-Nitrophenyl)benzothiazole, produced by deoxygenation of the corresponding nitro-compound or by thermolysis or photolysis of the related azide, gives indazolo<3,2-b>benzothiazole by attack on the benzothiazole nitrogen.Similar attack of the nitrene in 2-(2-nitrophenyl)benzimidazoles gives benzimidazoindazoles in good yield.However, with an appropriate 1-substituent in the benzimidazole (e.g.Me or CHMe2) the nitrene in its triplet state (generated by acetophenone-sensitised photolysis or by thermolysis of the azide bearing a 4-dimethylamino-group) preferentially attacks this substituent giving benzimidazoquinazolines.
View MoreBeijing Zhongshuo Pharmaceutical T & D Co.,Ltd
Contact:0086-10-64430626
Address:ea No 16, HEPINGLI,DONGCHENG DISTRICT,BEIJING,P.R.CHINA.
Contact:+86-532-80762375
Address:No. 6, Hongkong Middle Road, Qingdao, China
Melone Pharmaceutical Co., ltd
Contact:+86-411 82593920, 82593631
Address:No 232, JInma Roda, Development Zone, Dalian, China
Guangzhou Swan Chemical Co., Ltd.
Contact:+86-20-31075659
Address:NO.301, Hong ba fang investment BLDG 1,Guan chong village,Shiqi town,Panyu district,Guangzhou
Hubei Honch Pharmaceutical Co.,Ltd
Contact:86-713-7222018
Address:Li Shizhen Pharmaceutical Industry park, Qichun County, Hubei Province,China
Doi:10.1016/0008-6215(87)80273-2
(1987)Doi:10.1021/jo00415a008
(1978)Doi:10.1016/0040-4020(75)87079-7
(1975)Doi:10.1021/ja00964a029
(1966)Doi:10.1007/BF00778116
()Doi:10.1039/b411168k
(2004)
