| abstract |
Process for the preparation of aldehydes of the formula: R-CH (CH 3 ) -CHO. (R: straight-chain alkyl radical with 7 to 12 carbon atoms) by hydroformylation of olefins of the formula R-CH = CH 2 at 80 to 170 ° C and 200 to 350 bar in the presence of complex rhoduime compounds as a catalyst, followed by thermal treatment at 100 to 190 ° C of the reaction product, optionally after removal of the catalyst. |