Studies on pyrrolidinones. Catalyst induced selectivity during heterocyclizations of organosilicon compounds into 1,3,4-oxadiazoles or 1,2,4-triazines
作者:Pascal Cauliez、BenoǏT Rigo、D. Fasseur、D. Couturier
DOI:10.1002/jhet.5570330413
日期:1996.7
Heterocyclizations of trisilylated diacylhydrazines derived from pyroglutamic acid occurs selectively and yields, depending on the conditions, either to 1,3,4-oxadiazoles (basic catalyst: fluoride anion) or to fused 1,2,4-triazines (acidic catalyst: triflic acid).
衍生自焦谷氨酸的三甲硅烷基化的二酰基肼进行杂环化,并视条件而定,生成1,3,4-恶二唑(碱性催化剂:氟阴离子)或稠合的1,2,4-三嗪(酸性催化剂:三氟甲磺酸) )。