GLUNCIC B.; JAKOVINA M.; KOVACEVIC K.; KUJUNDZIC N., ACTA PHARM. JUGOSL., 36,(1986) N 4, 393-404
作者:GLUNCIC B.、 JAKOVINA M.、 KOVACEVIC K.、 KUJUNDZIC N.
DOI:——
日期:——
US3828044A
申请人:——
公开号:US3828044A
公开(公告)日:1974-08-06
Mono C-alkylation and mono C-benzylation of barbituric acids through zinc/acid reduction of acyl, benzylidene, and alkylidene barbiturate intermediates
作者:Branko S. Jursic、Edwin D. Stevens
DOI:10.1016/s0040-4039(03)00111-4
日期:2003.3
Through systematic exploration of reaction conditions, very efficient preparative procedures for obtaining large quantities of substituted 5-alkyl and 5-benzylbarbituric acids were developed. The procedure involves a two step preparation in which the second step is zinc dust/acid reduction. For preparation of 5-alkylbarbiturates, the first step is the preparation of either 5-acyl or 5-alkylidenebarbiturate