Ag3PW12O40:: A novel and recyclable heteropoly acid for the synthesis of 1,5-benzodiazepines under solvent-free conditions

被引：72

作者：

Yadav, JS ^{[1
]}

Reddy, BVS ^{[1
]}

Praveenkumar, S ^{[1
]}

Nagaiah, K ^{[1
]}

Lingaiah, N ^{[1
]}

Saiprasad, PS ^{[1
]}

机构：

[1] Indian Inst Chem Technol, Hyderabad 500007, Andhra Pradesh, India

来源：

SYNTHESIS-STUTTGART | 2004年 / 06期

关键词：

heteropoly acids; o-phenylenediamines; ketones; benzodiazepines;

D O I：

10.1055/s-2004-816013

中图分类号：

O62 [有机化学];

学科分类号：

070303 ; 081704 ;

摘要：

o-Phenylenediamines undergo smooth condensation with ketones having hydrogens at alpha-position on the surface of heteropoly acid (Ag3PW12O40) under extremely mild conditions to afford the corresponding 1,5-benzodiazepines in excellent yields with high selectivity. The catalyst can be recovered by simple filteration and can be reused in subsequent reactions.

引用

页码：901 / 904

页数：4

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