Journal
EUROPEAN JOURNAL OF ORGANIC CHEMISTRY
Volume 2004, Issue 6, Pages 1175-1183Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/ejoc.200300352
Keywords
alkynes; allenes; coupling; catalysis; palladium
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In this review, the Pd-catalyzed coupling reaction involving propargylic/allenylic species is discussed. In these reactions, eta(1)- and eta(3)-propargylic/allenylic species have been proposed as the key intermediates for the selective formation of either allenes or alkynes. It should be noted that, in most cases, allenes are formed as the major products. Electronic, steric, and ligand effects have been observed for the control of the regioselectivity. ((C) Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2004).
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