Generation of Nucleophilic Chromium Acetylides from gem??Trichloroalkanes and Chromium Chloride: Synthesis of Propargyl Alcohols

…, S Tisserand, N Puli, JR Falck, R Baati

Index: Dhurke, Kashinath; Steve, Tisserand; Narender, Puli; John R, Falck; Rachid, Baati European Journal of Organic Chemistry, 2010 , # 10 p. 1869 - 1874

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Abstract

Abstract Nucleophilic mixed chromium (II) and chromium (III) acetylides are generated from the smooth reduction of primary 1, 1, 1-trichloroalkanes with chromium (II) chloride in the presence of an excess amount of triethylamine at room temperature. These species arise from chromium (III) vinylidene carbenoids. It has been demonstrated that uncommon low- valent Cr II acetylides are formed by C–H insertion of Cr II Cl 2 into terminal alkynes, ...