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
收藏
页码：1137 / 1143
页数：7
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