| 摘要 |
Preparation of aldehydes comprises reacting olefinic unsaturated compounds containing at least 3 C with carbon monoxide and hydrogen in the liquid phase in the presence of water, solvent and a catalyst system containing a water soluble rhodium complex. Diphosphines of formula (I), optionally substituted with one or more sulphonic acid groups, are used as the ligands in the complex and compounds of formula (II) are used as solvents : A = 6-25C (omega-hydroxy)alkyl, optionally substituted 6-25C aryl or a group of formula R7-CONH-CH2-CH2-CH2- ; B-D = 1-4C (omega-hydroxy)alkyl, or C and D may combine with N to form a 5-6-membered heterocyclic ring ; E<-> = (in)organic anion ; X = 1-9C alkyl, 6-10C cycloalkyl or optionally substituted 6-10C aryl or 12C biaryl ; R1 = H, 1-14C alkyl, 1-14C alkoxy, 6-14C cycloalkyl, 6-14C aryl, 6-14C aryloxy or an anellated benzene ring ; R7 = 5-11C alkyl ; m = 0-5 ; and n = 0-4. |
