期刊
TETRAHEDRON
卷 67, 期 38, 页码 7386-7391出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.tet.2011.07.032
关键词
Palladium; Acylation; Acetylenic ketones; Homo-coupling; Diynes
资金
- University of Salento
- C.I.N.M.P.I.S (Consorzio Interuniversitario Nazionale Metodologie e Processi Innovativi di Sintesi)
Allyl or benzyl halides, through a Pd(0)-catalyzed reaction and under CO pressure, generate acyl-palladium/halides that, in the presence of a base and an aryl- and alkyl-acetylene, undergo nucleophilic acyl substitution giving conjugated acetylenic ketones. Diynes, resulting from allcyne/alkyne homo-coupling, were instead the main products in reactions performed without allyl or benzyl halides. Moreover, dimerization, trimerization, and cyclotrimerization reactions of acetylenes were observed in reaction carried out even without base. (C) 2011 Elsevier Ltd. All rights reserved.
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