Metallkomplexkatalysatoren mit Phosphons�ureester-Phosphan-Liganden. I. Carbonylierung von Methanol mit Phosphons�ureester-Phosphan-Rhodiumkomplexen in der Fl�ssigphase
作者:J. Freiberg、Axel Weigt、Herbert Dilcher
DOI:10.1002/prac.19933350406
日期:——
The treatment of technically available 2-(chloroethyl)phosphonic acid dimethylester (1) with diphenylphosphine and potassium-tert.-butylate affords 2-(diphenylphosphino)ethylphosphonic acid dimethylester (2 a) in a simple way. 2 a can be used as a hemilabil complex ligand (by phosphine and phosphoryl group.) Rhodium complexes of the type (MeO)2P(O)CH2CH2P(Ph)2RhL3 (3) were obtained from 2a and exhibit excellent catalytic properties in the liquid-phase carbonylation of methanol to acetic acid. Studies on other chelat-ligands did not confirm the exceptional increase of the activity by bisphosphinemonoxyd-ligands and the inhibition of the title reaction by bisphosphine-ligands already published.
Cauret, Laurent; Brosse, Jean-Claude; Derouet, Daniel, Bulletin de la Societe Chimique de France, 1997, vol. 134, # 5, p. 463 - 470
作者:Cauret, Laurent、Brosse, Jean-Claude、Derouet, Daniel、Livonniere, Hugues De
DOI:——
日期:——
Jakubowitsch et al., Zhurnal Obshchei Khimii, 1958, vol. 28, p. 320; engl. Ausg. S. 316
作者:Jakubowitsch et al.
DOI:——
日期:——
Kolesnikow et al., 1959, vol. 1, p. 367,370
作者:Kolesnikow et al.
DOI:——
日期:——
BREL A. K.; BOGDANOVA O. S.; RAXIMOV A. I., ZH. OBSHCH. XIMII, 1980, 50 HO 6, 1428-1429