| abstract |
Pure monoesters of adipic acid are prepared by a process in which n (a) a pentenoate is reacted with carbon monoxide and hydrogen at from 90° to 140° C. and under from 5 to 300 bar in the presence of a carbonyl complex of cobalt or of rhodium, and a 5-formylvalerate is separated off, and n (b) the 5-formylvalerate thus obtained is oxidized with molecular oxygen, or with a gas containing this, at from 20° to 100° C. under from 1 to 10 bar. |