作者:O. S. Attaryan、S. S. Martirosyan、G. A. Panosyan、S. G. Matsoyan
DOI:10.1007/s11176-005-0149-6
日期:2004.8
Alkylation of pyrazoles with 2,2′-dichloroethyl ether under conditions of phase-transfer catalysis was studied. The monoalkylation products of 3(5)-methylpyrazoles at 190–200°C undergo intramolecular cyclization to form bicyclic salts. Conditions for dehydrochlorination of N-[2-(2′- chloroethoxy)ethyl]pyrazoles into N-(2-vinyloxyethyl)pyrazoles were found.
研究了在相转移催化条件下吡唑与2,2′-二氯乙醚的烷基化反应。在190-200°C下,3(5)-甲基吡唑的单烷基化产物发生分子内环化反应,形成双环盐。还发现了N-[2-(2′-氯乙氧基)乙基]吡唑脱去氯化氢生成N-(2-乙烯氧基乙基)吡唑的条件。