OXAZOL-5(4H)-ONES .7. NEW SYNTHESIS OF OXAZOLO[5,4-B]PYRIDINES

被引：10

作者：

GELMI, ML ^{[1
]}

POCAR, D ^{[1
]}

VIZIANO, M ^{[1
]}

DESTRO, R ^{[1
]}

MERATI, F ^{[1
]}

机构：

[1] DIPARTIMENTO CHIM FIS ELETTROCHIM,I-20133 MILAN,ITALY

来源：

JOURNAL OF THE CHEMICAL SOCIETY-PERKIN TRANSACTIONS 1 | 1992年 / 06期

关键词：

D O I：

10.1039/p19920000701

中图分类号：

O62 [有机化学];

学科分类号：

070303 ; 081704 ;

摘要：

Oxazolo[5,4-b]pyridines 4 are synthesized by heating the iminophosphoranes 1 and alkylideneoxazol-5(4H)-ones 2. At room temperature the reaction of 4-ethoxymethyleneoxazol-5(4H)-one 2f with iminophosphorane 1a yields the enamino lactone 6, which is, in turn, transformed by heating in acetic acid into the 2(1H)-pyridone 7.

引用

页码：701 / 705

页数：5

共 20 条

[11] THE REACTION OF N-VINYLIMINOPHOSPHORANES .6. PREPARATION OF NOVEL N-VINYL, N-(1-BUTYLVINYL), AND N-(1-METHYL-1-PENTENYL)IMINOTRIPHENYLPHOSPHORANES AND THEIR REACTIONS WITH ALPHA,BETA-UNSATURATED KETONES [J].