The monobenzoylation of 1-phenyl-1,2-ethanediol in the presence of different tin reagent has been studied. The stannylene ketal of 1-phenyl-1,2-ethanediol has been prepared and used as a catalyst or generated in situ by exchange with other mixed tin ketals. In either case, the acylation occurs rapidly with 2 mol% of the catalyst with the known selectivity. These experiments clearly establish the catalytic nature of the acylation reaction. (c) 2005 Elsevier B.V. All rights reserved.
Diol-tin ketal as effective catalyst in the tin mediated benzoylation of polyols
FASOLI, EZIO;CALIGIURI, ANTONIO;SERVI, STEFANO;TESSARO, DAVIDE
2006-01-01
Abstract
The monobenzoylation of 1-phenyl-1,2-ethanediol in the presence of different tin reagent has been studied. The stannylene ketal of 1-phenyl-1,2-ethanediol has been prepared and used as a catalyst or generated in situ by exchange with other mixed tin ketals. In either case, the acylation occurs rapidly with 2 mol% of the catalyst with the known selectivity. These experiments clearly establish the catalytic nature of the acylation reaction. (c) 2005 Elsevier B.V. All rights reserved.File in questo prodotto:
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