Light screening agent

Details Light screening agent Light screening agent

1994-12-22

1996-01-02

McKane, Joseph K.

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

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

546275, C07D26112

Patent

active

054810019

ABSTRACT:
Light screening compositions which contain a compound of the formula ##STR1## wherein R.sup.1 represents H, C.sub.1-19 -alkyl, C.sub.2-29 -alkenyl, C.sub.2-29 -alkynyl, optionally lower-alkyl or oxy-lower alkyl substituted phenyl,

REFERENCES:
CA94(5):29684c Mass spectral . . . -5-ones. Keats et al., p. 481, 1981.
CA108(13):111758w Primary ethynamines . . . interest. Wentrup et al., p. 563, 1988.
CA114(22):220058n Synthesis . . . derivatives. El-Essawi et al., p. 895, 1991.
A. Maquestiau et al., J. Heterocycl. Chem. 12 (1), 1975, 27.
CA 114(22): 220058n Synthesis . . . derivatives. El-Essawi et al., p. 189, 1991.

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