Spiroxazine compounds

Details Spiroxazine compounds Spiroxazine compounds

1986-01-27

1988-01-12

Raymond, Richard L.

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

Organic compounds

Chalcogen in the nitrogen containing substituent

544 6, C07D41302, C07D41702

Patent

active

047192968

ABSTRACT:
A spiroxazine compound represented by the formula: ##STR1## wherein R.sup.1 and R.sup.2 each represents an alkyl group, an allyl group, an aryl group or an aralkyl group; rings A and B each represents a substituted or unsubstituted benzene ring, a substituted or unsubstituted naphthalene ring or a substituted or unsubstituted heterocyclic ring; X represents an oxygen atom or a sulfur atom; and n represents an integer of from 1 to 6, and a photochromic composition containing said spiroxazine compound are disclosed. The compound is excellent in compatibility to and solubility in high molecular weight compounds, and the composition containing the same stably develops a color of high density upon irradiation of ultraviolet rays.

REFERENCES:
patent: 4634767 (1987-01-01), Hoelscher et al.

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