Mechanistic studies of the phosphine-catalyzed homodimerization of ketoketenes
Abstract
The mechanism of PBu3-catalyzed homodimerization of ketoketenes has been explored and compared with that of the previously reported trialkylphosphite-mediated reactions. NMR studies of the PBu3-catalyzed reaction implicated the involvement of tetravalent phosphonium intermediates. Phosphonium intermediates in the catalytic cycle were trapped through reaction with trimethylsilyl chloride and 4-chlorobenzaldehyde, and the resulting products were...
Paper Details
Title
Mechanistic studies of the phosphine-catalyzed homodimerization of ketoketenes
Published Date
Dec 1, 2010
Journal
Volume
51
Issue
51
Pages
6690 - 6694
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