Cyclic aminals of aromatic heterocyclic compounds

Details Cyclic aminals of aromatic heterocyclic compounds Cyclic aminals of aromatic heterocyclic compounds

1973-11-30

1976-12-28

Love, Ethel G.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

260308A, 260308D, 260309, 2603191, C07D 4934

Patent

active

040001520

ABSTRACT:
Cyclic aminals of aromatic heterocyclic compounds useful in the dyestuffs, pharmaceutical and pesticides industries, are prepared by reacting aromatic heterocyclic compounds containing at least one NH-group in a ring with a tetra-aminoethylene.
The cyclic aminals produced have the formula ##STR1## wherein X.sup.5, X.sup.6, X.sup.7 and X.sup.8 are the same or different and are

REFERENCES:
chem. Ber. 105, 1651-1663 (1972).

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