Preparation of 2,2-dialkylpropionaldehydes

Details Preparation of 2,2-dialkylpropionaldehydes Preparation of 2,2-dialkylpropionaldehydes

1990-01-18

1991-04-30

Lone, Werren B.

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

Organic compounds

Oxygen containing

568451, C07C 4549, C07C 4550

Patent

active

050120069

ABSTRACT:
2,2-Dialkylpropionaldehydes I ##STR1## where R.sup.1 and R.sup.2 are each C.sub.1 -C.sub.4 -alkyl, are prepared by hydroformylation of 1,1-dialkylethylenes II ##STR2## with cobalt carbonyl complexes, entailing (a) carrying out the reaction in the presence of water-containing solvents in which water is soluble or at least partially soluble, with the water content of the reaction mixture being from 0.1 to 20% by weight, or

REFERENCES:
patent: 4593126 (1986-01-01), Cornils et al.
patent: 4599323 (1986-07-01), Demay et al.
Chemical Engineering Progress, vol. 62, No. 4, pp. 74-78, Apr. 1966, J. E. Knap et al., "Hydroformylation of Isobutene".
Zhurnal Prikladnoi Khimii, vol. 41, No. 10, 1968, pp. 2275-2281, Oct., 1968, (corr. J. of Applied Chem. of the USSR, pp. 2148-2152, V. Yu. Ganken et al., "Hydroformylation of Olefins in the Presence of Rhodium Carbonyls".
Chemical Abstracts, vol. 70, 1969 114537f, K. A. Alekseeva et al., "Composition of Isobutylene Hydroformylation Products".

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