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Chromium–Carbyne Complexes: Intermediates for Organic Synthesis


  • We are grateful to the Ministère délégué à l'Enseignement supérieur et à la Recherche, the Robert A. Welch Foundation, and NIH (GM31278, DK38226) for their financial support of this work.


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On the same route: Chromium-carbyne complexes are readily prepared by treatment of 1,1,1-trichloromethyl reagents with chromium(II) chloride. They serve as intermediates in the selective formation of a wide variety of products, such as alkynes, alkenes, β-hydroxy ketones, aldehydes, allylic alcohols, and allenes (see scheme, E=electrophile).