| 摘要 |
1,1,2-trialkoxyethanes I <IMAGE> (I) where R1, R2 and R3 are each C1-C8-alkyl and R1 and R2 may furthermore be bonded to one another to form a 5-membered to 7-membered ring, are prepared by reacting a formaldehyde dialkyl acetal II with carbon monoxide and hydrogen, from 0.5 to 1.5 moles of hydrogen being used per mole of carbon monoxide, and with not less than 1 mole of alcohol R3OH per mole of formaldehyde dialkyl acetal under superatmospheric pressure and at elevated temperatures in the presence of a catalyst which is formed from a cobalt carbonyl compound and a trivalent organic compound of the formula III <IMAGE> III where A is phosphorus, arsenic, antimony or bismuth and R4, R5 and R6 are each an organic radical. |
