文献类型：期刊文献

英文题名：Selective oligomerization of nitriles having α-hydrogen catalyzed by alkali

作者：Tao, Xiaochun[1]; Liu, Taoping[1]; Tao, Hui[1]; Liu, Ruzhang[1]; Qian, Yanlong[1]

机构：[1]E China Univ Sci & Technol, Organomet Chem Lab, Shanghai 200237, Peoples R China

年份：2003

卷号：201

期号：1-2

起止页码：155

外文期刊名：JOURNAL OF MOLECULAR CATALYSIS A-CHEMICAL

收录：;EI(收录号：2003267518809);WOS:【SCI-EXPANDED(收录号:WOS:000183598800014)】；

语种：英文

外文关键词：nitrites; oligomerization; 4-aminopyrimidine; alkali; catalysis

摘要：Highly selective cyclotrimerization of acetonitrile was achieved in the presence of a catalytic amount of alkali under mild conditions to produce 4-amino-2,6-dimethylpyrimidine in satisfactory yields. Among different base catalysts sodium hydride has the highest activity in this reaction. This catalytic system is also efficient for reactions of other nitriles having alpha-hydrogen. Linear dimers, linear- or cyclo-trimers can be obtained selectively. (C) 2003 Elsevier Science B.V. All rights reserved.