Journal of the Chemical Society. Perkin transactions I p. 2611 - 2615 (1983)
Update date:2022-08-04
Topics:
Katritzky, Alan R.
Cozens, Andrew J.
2-Ethoxycarbonyl-4,6-diphenylpyrylium salts (1) reacted with various ring-substituted anilines to give the corresponding pyridinium salts (2) (average yield 90percent); these were hydrolysed to the pyridinium betaines (3) (75percent) and treated with thionyl chloride followed by an aniline to give the amides (4) (70percent).Refluxing in toluene with sodium hydride for 12 h transfers intramolecularly the 1-aryl group of the pyridinium salt(4) to the nitrogen of the amide.Aqueous work-up cleaves (6) and the diarylamine is purified by sublimation (60percent) (overall yield ca. 30percent).
View MoreContact:+86-0760-85282375
Address:zhongjing road,zhongshan torch hi-tech industrial development zone
NANCHANG QINZHI SCI&TEC.CO.,LTD(expird)
Contact:+86-13687004106
Address:Hero South Road,Hero Zone,Nanchang,Jiangxi,China
KA-SHING Business Trade Macau Co., Ltd.
Contact:00853-28430045
Address:23rd Floor, Block 3 La Cite, Areia Preta, Macao
website:http://www.tcfinechem.com/
Contact:18681346930
Address:baifu town,whou district
Shaanxi Lighte Optoelectronics Material Co., Ltd.
Contact:+86-29-88320728-622/619/620
Address:No.55 INDUSTRY ROAD 2,XI'AN NATIONAL CIVIL AEROSPACE INDUSTRIAL PARK.XI'AN China 710065.
Doi:10.1002/ejic.201900428
(2019)Doi:10.1016/0040-4039(91)80436-A
(1991)Doi:10.1016/j.tetlet.2007.01.057
(2007)Doi:10.1021/jo00363a001
(1986)Doi:10.1021/ic060111k
(2006)Doi:10.1016/S0040-4039(00)88392-6
(1983)
