Tetrahedron

Microwave-accelerated Wittig olefination of β-chloroacroleins

…, G Dhananjaya, SN Singh, R Kumar, K Mukkanti, M Pal

Index: Bera, Rabin; Dhananjaya; Singh, Shambu Nath; Kumar, Rajender; Mukkanti; Pal, Manojit Tetrahedron, 2009 , vol. 65, # 7 p. 1300 - 1305

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Citation Number: 14

Abstract

The first microwave assisted Wittig reactions of β-chloroacroleins with a stabilized ylide are described here. A combination of sodium ethoxide and toluene was found to be optimum and using this reaction condition a number of alkenyl-substituted benzopyran/benzo [b] oxepine/2-chromenone derivatives were prepared within few minutes. The microwave mediated process was found to be comparable with the conventional Wittig reaction in ...