Hydroformylation process using novel phosphine-rhodium catalyst system.

摘要

Phosphine cpds. of formula (I) are new, A1-A6 = (opt. substd.) 6-10C o-arylene, R1-R4 = H or 1-8C hydrocarbyl. Also claimed are (1) catalyst systems comprising (I) and Rh, and (2) catalyst solns. comprising (I), Rh and a hydroformylation solvent. A1-A6 = 1,2-phenylene substd. by 0-4 R5 gps. or 1,2- or 2,3-naphthylene substd. by 0-6 R6 gps., R5 and R6 = 1-8C alkyl, 1-8C alkoxy, OH, halogen, CHO, 2-9C alkanoyl, 7-11C aroyl, COOH (or salt), 2-9C alkoxycarbonyl, 2-9C alkanoyloxy, CN or SO3H (or salt).