Abstracts of Papers, 244th ACS National Meeting & Exposition, Philadelphia, PA, United States, August 19-23, 2012
英文:
Abstracts of Papers, 244th ACS National Meeting & Exposition, Philadelphia, PA, United States, August 19-23, 2012
巻, 号, ページ
pp. ORGN-596
出版年月
2012年
出版者
和文:
American Chemical Society
英文:
American Chemical Society
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アブストラクト
Transition-metal-catalyzed hydroalkynylative cross-trimerizations of terminal alkynes with unsatd. compds. are highly efficient and atom-economical methods for the synthesis of alkynyl-substituted linear carbon scaffolds. The trimerization of three different unsatd. compds. is the challenging theme due to the difficulty of the chemo-, regio- and stereoselectivity control. Esp., a synthesis of conjugated enynes by the coupling of terminal alkynes, alkynes, and alkenes has not been reported to date. Herein, we report a cationic rhodium(I)-catalyzed linear cross-trimerization of silylacetylenes, alkynyl esters, and electron-deficient alkenes giving conjugated enynes. [on SciFinder(R)]
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