The reaction of lithiated aldimines, prepared from activated amides, with epoxides leads to good yields of 2-aminotetrahydrofurans (neutral hydrolysis) and 2-hydroxytetrahydrofurans (acid hydrolysis). Various epoxides were examined.
Comparison of the tautomerization and hydrolysis of some secondary and tertiary enamines
作者:Brian Capon、Zhen Ping Wu
DOI:10.1021/jo00295a017
日期:1990.4
6,8-Dimethylpyrimido[4,5-c]pyridazine-5,7(6H,8H)-dione: a novel method of pyrrole-ring annulation to an azine nucleus based on a tandem SNH–SNH process
作者:Anna V Gulevskaya、Denis V Besedin、Alexander F Pozharskii、Zoya A Starikova
DOI:10.1016/s0040-4039(01)01163-7
日期:2001.8
6,8-Dimethylpyrimido[4,5-c]pyridazine-5,7(6H,8H)-dione has been shown to react with some secondary amines in the presence of an oxidant to produce 6,8-dimethylpyrrolo[2 ' ,3 ' ;3,4]pyridazino[6,5-d]pyrimidine-7,9(6H,SH)-dione derivatives. The reaction represents a new method of pyrrole-ring annulation to an azine nucleus via a tandem S-N(H)-S-N(H) process. (C) 2001 Elsevier Science Ltd. All rights reserved.
Etude comparative de la photoreactivite d'enamides et de thioenamides aromatiques tertiaires