The Journal of organic chemistry

Unexpected catalyst for Wittig-type and dehalogenation reactions

ZZ Huang, Y Tang

Index: Huang, Zheng-Zheng; Tang, Yong Journal of Organic Chemistry, 2002 , vol. 67, # 15 p. 5320 - 5326

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Citation Number: 71

Abstract

A novel catalyst 2 for Wittig-type and dehalogenation reactions was developed. In the presence of triphenyl phosphite, a wide variety of aldehydes could react with α- bromoacetates to afford α, β-unsaturated esters or ketones in high yields with excellent E- stereoselectivity when 1-2 mol% of compound 2 was used. Compound 2 was also an effective catalyst for reductive dehalogenation of α-bromocarbonyl compounds. The ...