Hydroformylation Reactions with Rhodium-Complexed Dendrimers on Silica

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• 作者：S. Christine Bourque ; Franç ; ois Maltais ; Wen-Jing Xiao ; Olivier Tardif ; Howard Alper ; Prabhat Arya ; and Leo E. Manzer
• 刊名：Journal of the American Chemical Society
• 出版年：1999
• 出版时间：April 7, 1999
• 年：1999
• 卷：121
• 期：13
• 页码：3035 - 3038
• 全文大小：62K
• 年卷期：v.121,no.13(April 7, 1999)
• ISSN：1520-5126

文摘

Polyamidoamine dendrimers, constructed on the surface of silica, were phosphonated by usingdiphenylphosphinomethanol, prepared in situ, and complexed to rhodium by use of [Rh(CO)₂Cl]₂. Excellentselectivities, favoring the branched aldehydes obtained from aryl olefins and vinyl esters, were observed byusing the Rh(I) complex as the catalyst in hydroformylation reactions. The heterogeneous Rh (I) catalyst canalso be recycled and reused without significant loss of selectivity or activity.