Preparation of .alpha.,.beta.-aldehydes by aldol condensation

Details Preparation of .alpha.,.beta.-aldehydes by aldol condensation Preparation of .alpha.,.beta.-aldehydes by aldol condensation

1980-10-29

1982-02-23

Lone, Werren B.

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

Organic compounds

Oxygen containing

568459, 568463, C07C 4572, C07C 4720

Patent

active

043169902

ABSTRACT:
In the present invention aliphatic aldehydes are condensed to form .alpha.,.beta.-unsaturated aldehydes by use of a heterogeneous catalyst. Such process uses an anatase titanium dioxide catalyst in a fixed bed process under mild temperature conditions to yield high conversions and high yields, and which also eliminates the catalyst removal steps required by conventional processes.

REFERENCES:
patent: 1896240 (1933-02-01), Jaeger
patent: 3542878 (1970-11-01), Swift
patent: 3948991 (1976-04-01), Chan et al.

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