Regioselective synthesis of 6H-pyrano[3,2-e]pyrimidine-2,4-dione

被引：16

作者：

Majumdar, KC

Das, U

机构：

[1] Department of Chemistry, University of Kalyani, Kalyani 741235, West Bengal

来源：

SYNTHETIC COMMUNICATIONS | 1997年 / 27卷 / 22期

关键词：

D O I：

10.1080/00397919708005924

中图分类号：

O62 [有机化学];

学科分类号：

070303 ; 081704 ;

摘要：

7-Aryloxymethyl-1,3-dimethyl-6H-pyrano[3,2-e]pyrimidine-2,4-diones(4a-f) were synthesized in 88-92% yields (isolated) by the regioselectively thermal [3s, 3s] sigmatropic rearrangement of 1,3-dimethyl-5-(1 -aryloxybut-2-ynyloxy)pyrimidine-2,4-diones, (3a-f) in refluxing chlorobenzene (purified) for 2-4 h.

引用

页码：4013 / 4019

页数：7

共 7 条

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