Synthesis of 3,4-dihydroquinazolin-4-one: selenium-catalyzed reductive N-heterocyclization of N-(2-nitrobenzoyl)amides with carbon monoxide
摘要:
A catalytic synthetic method of 3,4-dihydroquinazolin-4-ones has been developed. When N-(2-nitrobenzoyl)amides were treated with carbon monoxide in the presence of a catalytic amount of selenium, reductive N-heterocyclization of N-(2-nitrobenzoyl)amide efficiently proceeded to give the corresponding 3,4-dihydroquinazolin-4-ones in moderate to good yields. (C) 2002 Elsevier Science Ltd. All rights reserved.
A catalytic synthetic method of 3,4-dihydroquinazolin-4-ones has been developed. When N-(2-nitrobenzoyl)amides were treated with carbon monoxide in the presence of a catalytic amount of selenium, reductive N-heterocyclization of N-(2-nitrobenzoyl)amide efficiently proceeded to give the corresponding 3,4-dihydroquinazolin-4-ones in moderate to good yields. (C) 2002 Elsevier Science Ltd. All rights reserved.
Synthetic analogues of Peganum alkaloids. III. Pentamethylenequinazolones
作者:A. L. D'yakonov、M. V. Telezhenetskaya、L. Yu. Yunusov