codimerization of styrene and ethene can be carried out continuously in a nanofiltrationmembranereactor with dendritic Pd complexes such as 1. The selectivity of the reaction is increased considerably undercontinuousconditions. The activity and selectivity of monomeric model complexes and the dendritic catalysts were compared in batch reactions.
Functionalized Carbosilane Dendritic Species as Soluble Supports in Organic Synthesis
作者:Neldes J. Hovestad、Allan Ford、Johann T. B. H. Jastrzebski、Gerard van Koten
DOI:10.1021/jo991726k
日期:2000.10.1
the use of reactive organometallicreagents, has been developed for the use of carbosilane dendrimers as soluble supports in organic synthesis. Hydroxy-functionalized dendritic carbosilanes Si[CH2CH2CH2SiMe2(C6H4CH(R)OH)]4 (G0-OH, R = H or (S)-Me) and Si[CH2CH2CH2Si[CH2CH2CH2SiMe2(C6H4CH(R)OH)]3]4 (G1-OH, R = H or (S)-Me) were prepared and subsequently converted into the estersSi[CH2CH2CH2SiMe2(C6H4CH(R)OC(O)CH2Ph)]4