Reactions of cobalt carbene complexes with alkynes.. eta. 4-Vinylketene-complexed intermediates and a novel synthesis of bovolide

…, SR Gilbertson, JP Springer

Index: Wulff, William D.; Gilbertson, Scott R.; Springer, James P. Journal of the American Chemical Society, 1986 , vol. 108, # 3 p. 520 - 522

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Citation Number: 62

Abstract

The report 8 years ago of the reaction of the chromium carbene complex 1 with diphenylacetylene in heptane (Scheme I) was the first to indicate the complexity of reactions of this type with regard to structural variations in the products and the sensitivity to reaction conditions. 3a The reaction had previously been reported to give only the naphthol complex 2 in n-butyl ethersgb It has since been well established4s5 that the benzannulated ...