Method for preparing symmetrical and unsymmetrical ketazines and

Details Method for preparing symmetrical and unsymmetrical ketazines and Method for preparing symmetrical and unsymmetrical ketazines and

1974-12-09

1976-08-03

Schwartz, Gerald A.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

260566B, C07C10900

Patent

active

039728749

ABSTRACT:
The invention relates to a method for preparing symmetrical ketazines of the formula ##EQU1## and unsymmetrical ketazines of the formula ##EQU2## and mixtures of ketazines (I), (II) and (IV) and (I), (III) and (V) wherein R.sup.1, R.sup.2, R.sup.3 and R.sup.4 each is a straight chain alkyl radical of from 1 to 12 carbon atoms, a branched chain alkyl radical or cycloalkyl radical of from 3 to 12 carbon atoms, or a phenyl radical, the aforesaid radicals being unsubstituted or substituted with radicals which are stable in the medium in which the ketazines are prepared; and in which case R.sup.1 and R.sup.2 can be the same or different radicals, and R.sup.3 and R.sup.4 are radicals different from each other and are each a radical different from R.sup.1 and R.sup.2 ; or R.sup.1 and R.sup.2, or R.sup.1 and R.sup.3, or R.sup.3 and R.sup.4 of either or both the ##EQU3## moieties together form a cyclic or substituted cyclic radical of from 3 to 11 carbon atoms in the ring, which comprises:

REFERENCES:
Brown et al, J. Am. Chem. Soc. vol. 77 pp. 1756-1759 (1955).

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