Synthesis of pyrimidine annelated heterocycles -: Regioselective heterocyclization of 6-cyclopent-2-enyl-5-hydroxy-1,3-dimethyl-pyrimidine-2,4(1H,3H)-dione and 5-cyclopent-2-enyl-6-hydroxy-1,3-dimethylpyrimidine-2,4(1H,3H)-dione

被引：0

作者：

Majumdar, KC ^{[1
]}

Kundu, UK ^{[1
]}

Samanta, SK ^{[1
]}

Jana, NK ^{[1
]}

机构：

[1] Univ Kalyani, Dept Chem, Kalyani 741235, W Bengal, India

来源：

MONATSHEFTE FUR CHEMIE | 2003年 / 134卷 / 08期

关键词：

pyridine hydrotribromide; heterocycles; cyclization; hexamethylenetetramine hydrotribromide; 6-endo cyclization;

D O I：

10.1007/s00706-003-0043-z

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Two hitherto unreported pyrimidine amelated heterocycles were synthesized from 6-cyclopent-2-enyl-5-hydroxy-1,3-dimethylpyrimidine-2,4(1H,3H)-dione and 5-cyclopent-2-enyl-6-hydroxy-1,3-dimethylpyritnidine-2,4(1H,3H)-dione by reaction with pyridine hydrotribromide or hexamethylenetetramine hydrotribromide. The first one was also obtained by reaction with concentrated sulfuric acid.

引用

页码：1137 / 1143

页数：7

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