Reversible photochromatic solid

Details Reversible photochromatic solid Reversible photochromatic solid

1985-03-29

1988-05-17

Ceperley, Mary E.

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

Organic compounds

Sulfur containing

430338, 568 52, 568 56, 568 57, C07C14934, C07C14932

Patent

active

047452277

ABSTRACT:
New compounds having the generic formula: ##STR1## wherein: X=halogen, Y= ##STR2## X=Y= ##STR3## X=Y= ##STR4## R=hydrogen, halogen such as chlorine, lower alkoxy such as methoxy, or lower alkyl such as methyl.
These new compounds are useful as reversible photochromatic solids.

REFERENCES:
patent: 3096375 (1963-07-01), Campbell et al.
patent: 3114777 (1963-12-01), Reifschneider
patent: 3650760 (1972-03-01), Gates, Jr. et al.
patent: 3686331 (1972-08-01), O'Brien et al.
patent: 3879472 (1975-04-01), Martin
patent: 3932527 (1976-01-01), Metcalf et al.
patent: 4108906 (1978-08-01), Anderson
patent: 4136102 (1979-01-01), Crivello
patent: 4400293 (1983-08-01), Romer et al.
Banyu Pharmaceutical Co., Chem. Abstract 57:3363h (1962) citing Japan Patent 16,623 (1961).
S. D. Cox et al., J. Am. Chem. Soc. (1984), 106, 7131-7133, A Novel Organic Photochromic.
Smets, (1983) Adv. Poly Sci. 50: 18-44.
Photochromism: Techniques of Chemistry, vol. III, pp. 744-780 (Glenn H. Brown ed. 1971).

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