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Type: Artigo de periódico
Title: The Influence Of Protecting Groups On The Diastereoselectivity Ofcatalyticheterogeneous Hydrogenation Of Baylis-hillman Adducts
Author: Coelho F.
Almeida W.P.
Mateus C.R.
Furtado L.D.
Gouveia J.C.F.
Abstract: In this communication we describe our recent results from a study on catalytic heterogeneous hydrogenation reactions of Baylis-Hillman adducts. Depending on the protecting groups used on the secondary hydroxyl group of these adducts, it is possible to obtain a high degree of diastereoselection. For silylated Baylis-Hillman adducts a high syn diastereoselectivity has been obtained. However, when secondary Baylis-Hillman hydroxyl groups were unprotected or protected as acetate a moderate anti selectivity was attained. The adducts protected as methyl ether gave poor syn diastereoselectivity.
Rights: fechado
Identifier DOI: 
Date Issue: 2003
Appears in Collections:Unicamp - Artigos e Outros Documentos

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