Difunctional additions to 1-cyclopropylallenes: an efficient and stereospecific method for the synthesis of 2,6-difunctional-1,3-hexadienes
作者:Bo Meng、Lei Yu、Xian Huang
DOI:10.1016/j.tetlet.2009.02.055
日期:2009.4
The difunctional additions of electrophiles and nucleophiles to 1-cyclopropylallenes were investigated. Two different functional groups were introduced at the same time to give 2,6-difunctional-1,3-hexadienes stereoselectively in good yields. (C) 2009 Elsevier Ltd. All rights reserved.
Halohydroxylation of 1-Cyclopropylallenes: An Efficient and Stereoselective Method for the Preparation of Multisubstituted Olefins
作者:Lei Yu、Bo Meng、Xian Huang
DOI:10.1021/jo801087d
日期:2008.9.1
The halohydroxylation of 1-cyclopropylallenes would generate two multisubstituted C=C double bonds and at the same time stereoselectively gives 5-halohexa-3,5-dien-1-ols in moderate to good yields. The latter could be transformed into the corresponding alkynyl-substituted conjugated dienes through the further Sonogashira coupling.