.alpha.,.beta.-substituted acroleins

Details .alpha.,.beta.-substituted acroleins .alpha.,.beta.-substituted acroleins

1988-06-27

1990-04-24

Lee, Mary C.

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

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

546246, 546248, 546340, 544224, 544335, 548204, 548236, 548240, 549 13, 549426, 549427, 549496, 549498, 549 77, 549 78, C07D21356, C07D21346, C07D21130, C07D31500

Patent

active

049202324

ABSTRACT:
Known and novel substituted acroleins of the general formula I ##STR1## where R.sup.1 is alkoxy, phenoxy, halogen, haloalkyl, haloalkoxy, haloalkylthiyl or nitro, n is an integer from 1 to 5, in the case of n being greater than 1 the R.sup.1 s being identical or different and in the event of nitro substitution the aromatic ring carrying not more than 3 nitro groups, and where R.sup.2 is alkyl, cycloalkyl, unsubstituted or substituted aryl or hetaryl or a nonaromatic heterocyclic radical, are prepared by reacting a phenylacetaldehyde of the general formula II ##STR2## with an aldehyde of the general formula III

REFERENCES:
Houben-Weyl, Methoden der Organischen Chemie, vol. VII/1, 76 et seq.
Annalen der Chemie, 586 (1954), 110.
A. T. Nielsen and W. J. Houlihar, Organic Reactions, 16 (1968), 15 et seq.
Journal Praktische Chemie, 90 (1912), 227 et seq.
Chemische Berichte, 85 (1952), 1116 et seq.

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