Water-Promoted Photochemical Synthesis of 12-Oxo-6,12-Dihydroazepino[2,1-b]quinazolines with Competitive Formation of 3H-Azepine-2(1H)-Ones
作者:A. V. Budruev、D. A. Davydov、M. A. Giricheva、A. V. Pokrovskaya、G. K. Fukin、A. L. Pronina
DOI:10.1134/s0018143921040032
日期:2021.7
Abstract The effect of an organo-aqueous solvent on the yields of 12-oxo-6,12-dihydroazepino[2,1-b]quinazoline-6-carboxylic acid methyl ester and 3H-azepine-2(1H)-one-3-carboxylic acid methyl ester has been evaluated. It has been found that at low concentrations, water competes with 2-aminobenzoic acid ethyl ester in the nucleophilicaddition reaction, reducing the yields of azepino[2,1-b]quinazolinone
摘要 有机水溶剂对 12-oxo-6,12-dihydroazepino[2,1- b ]quinazoline-6- 羧酸甲酯和 3H-azepine-2(1H)-one-3- 产率的影响羧酸甲酯已被评估。已经发现在低浓度下,水在亲核加成反应中与2-氨基苯甲酸乙酯竞争,降低氮杂[ 2,1- b ]喹唑啉酮的产率并增加3H-氮杂环酮的产率。在超过 20 wt% 的水浓度下,取代苯胺的亲核性增加,有助于增加氮杂[ 2,1- b ]喹唑啉酮的产率和降低 3H-氮杂环酮的产率。
Purvis, Roger; Smalley, Robert K.; Suschitzky, Hans, Journal of the Chemical Society. Perkin transactions I, 1984, # 2, p. 249 - 254
作者:Purvis, Roger、Smalley, Robert K.、Suschitzky, Hans、Alkhader, Mohamed A.
DOI:——
日期:——
PURVIS, R.;SMALLEY, R. K.;SUSCHITZKY, H.;ALKHADER, M. A., J. CHEM. SOC. PERKIN TRANS., 1984, N 2, 249-254
作者:PURVIS, R.、SMALLEY, R. K.、SUSCHITZKY, H.、ALKHADER, M. A.