CARBON-MONOXIDE AS A BUILDING BLOCK FOR ORGANIC-SYNTHESIS .3. SELECTIVE HYDROCARBONYLATION OF MONOTERPENES TO GIVE POTENTIALLY BIOLOGICALLY-ACTIVE ALDEHYDES
JOURNAL OF MOLECULAR CATALYSIS
|
1991年
/
66卷
/
03期
关键词:
D O I:
10.1016/0304-5102(91)80031-W
中图分类号:
O64 [物理化学(理论化学)、化学物理学];
学科分类号:
070304 ;
081704 ;
摘要:
The dinuclear rhodium complexes [Rh2(mu-SR)2(CO)2L2], where L = PPh3, P(OPh)3 or P(OMe)3, were shown to be efficient and fully selective precursors for the hydrocarbonylation of limonene, isopulegol, isopulegyl acetate, alpha- and beta-pinenes. This reaction takes place at low pressures (0.5-1.7 MPa) and low temperature (85-degrees-C). The effects of the phosphorus-containing ligands, the solvent, the nature of the monoterpene on the course of the reaction and in particular the regioselectivity of the carbonylation were analyzed.