Method for the preparation of 1,4-butandial

Details Method for the preparation of 1,4-butandial Method for the preparation of 1,4-butandial

1985-01-24

1986-08-26

Lone, Werren B.

Organic compounds -- part of the class 532-570 series

Organic compounds

Oxygen containing

568465, 568485, 568494, 568672, C07C 4549

Patent

active

046084436

ABSTRACT:
The preparation of 1,4-butandial (succindialdehyde) is obtained using acrolein. The acrolein is first converted with an alkanol into 3,3-dialkoxy-1-propene and this is then hydroformylated in the presence of hydridotristriphenylphosphine-rhodiumcarbonyl mixed with triphenylphosphine or triphenylphosphite as the catalyst. The thereby obtained 4,4-dialkoxy-butanal is removed from the hydroformylation product by means of distillation and is then hydrolyzed to 1,4-butandial.

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