Process for producing 4-substituted-2-butenals

Details Process for producing 4-substituted-2-butenals Process for producing 4-substituted-2-butenals

1997-04-22

1998-06-23

Geist, Gary

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

Organic compounds

Carboxylic acid esters

568433, 568459, 568463, 560231, C07C 4545, C07C 6700

Patent

active

057707626

ABSTRACT:
Described is a process for producing a 4-substituted-2-butenal represented by the following formula (1); ##STR1## (wherein X represents an acyloxy group or halogen atom; R represents hydrogen atom, an aliphatic hydrocarbon group or an aromatic hydrocarbon group; and these hydrocarbon groups can be substituted with hydroxyl group, an alkoxy group, an aryloxy group, an acyl group or an alkoxycarbonyl group), which is useful as synthetic intermediates of phormaceutieals, agricultural chemicals and the like,
comprising subjecting a substituted acetaldehyde represented by the following formula (2);

REFERENCES:
patent: 4873362 (1989-10-01), Merger et al.
Carlos F. Barbas, et al., Journal of the American Chemical Society, vol. 112, No. 5, pp. 2013-2014, "Deoxyribose-5-Phosphate Aldolase as a Synthetic Catalyst", Feb. 28, 1990.
Barbas et al., "Deoxyribose-5-phosphate . . . catalyst", J. Am. Chem. Soc., 112(5), pp. 2013-2014, 1990.

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