Control of chemo- and regio-selectivity in rhodium catalysed reactions of unsaturated amines with
作者:David J. Bergmann、Eva M. Campi、W.Roy Jackson、Quentin J. McCubbin、Antonio F. Patti
DOI:10.1016/s0040-4039(97)00889-7
日期:1997.6
The rhodium catalysed reactions of N-allyl- and N-butenyl-1,3-diaminopropanes give single products arising from exclusive hydroformylation at the terminal carbon when the hindered bisphosphite ligand, BIPHEPHOS is used. Reactions using a high carbon monoxide: hydrogen ratio (9:1) and triphenylphosphine as ligand give predominantly lactams arising from carbonylation but with poor control of regioselectivity
当使用受阻的双亚磷酸酯配体BIPHEPHOS时,N-烯丙基和N-丁烯基-1,3-二氨基丙烷的铑催化反应产生的单一产物是由末端碳的独家加氢甲酰化产生的。使用高一氧化碳:氢比率(9:1)和三苯膦作为配体的反应主要产生内酰胺,这些内酰胺是由羰基化产生的,但对区域选择性的控制较差。