Fluorous derivatives of [Rh(COD)(dppe)]BX4 (X=F, Ph): synthesis, physical studies and application in catalytic hydrogenation of 1-alkenes and 4-alkynes
作者:Elwin de Wolf、Anthony L Spek、Bonny W.M Kuipers、Albert P Philipse、Johannes D Meeldijk、Paul H.H Bomans、Peter M Frederik、Berth-Jan Deelman、Gerard van Koten
DOI:10.1016/s0040-4020(02)00217-x
日期:2002.5
(higher hydrogenation activity and lower isomerization activity) relative to [Rh(COD)(dppe)]BF4 were observed in the hydrogenation of 1-octene using non-fluorous, silyl-substituted [Rh(COD)(2)]BF4 (5; 2=[CH2P(C6H4–SiMe3-p)2]2 or [Rh(COD)(3)]BF4 (6; 3=[CH2P(C6H4–SiMe2C8H17-p)2]2) and even more so with fluorous [Rh(COD)(1a)]BF4 (4a). For 4a and 6, the presence of aggregates was demonstrated by dynamic light