Bis(trimethylsilyl)ketene acetals as 1,3-dinucleophiles. Formation of an anhydride from (pentacarbonyl)(phenylethoxy)tungstacarbene期刊界 All Journals 搜尽天下杂志传播学术成果专业期刊搜索期刊信息化学术搜索

Bis(trimethylsilyl)ketene acetals as 1,3-dinucleophiles. Formation of an anhydride from (pentacarbonyl)(phenylethoxy)tungstacarbene

Authors:	Henri Rudler,André e Parlier,J. Vaissermann

Affiliation:	^a Institut Fédératif de Chimie Moléculaire FR 2769, Laboratoire de Chimie Organique, UMR 7611, Université Pierre et Marie Curie, T. 44-45 1er etage C.C. 181, 4 Place Jussieu, 75252 Paris Cedex 05, France ^b Instituto de Química UNAM, Circuito Exterior, Ciudad Universitaria, Coyoacán C.P. 04510, México, D.F.

Abstract:	The carbene complex (CO)₅WC(Ph)OEt (1) reacts with the ketene acetal Me₂CC(OSiMe₃)₂ (2) in the presence of t-BuOK to give the anhydride C₁₂H₁₂O₃ (3) characterized by an X-ray analysis, upon cleavage of both oxygen-silicon bonds, elimination of the ethoxy group, insertion of CO, and elimination of W(CO)₄.

Keywords:	Ketene acetals Carbene complexes Dinucleophiles
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