A Simple, Two-Step, Site-Specific Preparation of Fluorinated Naphthalene and Phenanthrene Derivatives from Fluorobromo-Substituted Alkenes
作者:Yi Wang、Jianjun Xu、Donald J. Burton
DOI:10.1021/jo061305k
日期:2006.9.1
two-step procedure for the site-specific preparation of fluorinated naphthalene and phenanthrenederivatives is described. The Sonogashira reaction of bromofluoro-substituted alkenes with terminal alkynes, followed by base-catalyzed cyclization in refluxing N-methyl-2-pyrrolidinone (NMP), affords the corresponding fluorinated naphthalene and phenanthrenederivatives in good yields.
Stereoselective synthesis of β-fluoroenyne by the reaction of gem -difluoroalkenes with terminal alkynes
作者:Guanyi Jin、Juan Zhang、Wei Wu、Song Cao
DOI:10.1016/j.jfluchem.2014.10.010
日期:2014.12
A mild and convenient method for the stereoselective synthesis of a series of conjugated beta-fluoroenynes by the reaction of gem-difluoroalkenes with terminal alkynes with the assistance of n-butyllithium and K3PO4 is described. (C) 2014 Elsevier B.V. All rights reserved.