4,4-dimethyl-1-phenylpentane-1,3-dione derivative and UV ray abs

Details 4,4-dimethyl-1-phenylpentane-1,3-dione derivative and UV ray abs 4,4-dimethyl-1-phenylpentane-1,3-dione derivative and UV ray abs

1992-03-17

1994-12-06

Ore, Dale R.

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

Organic compounds

Oxygen containing

424 59, 424 66, C07C 4982, A61K 734, A61K 742

Patent

active

053712960

ABSTRACT:
A 4,4-Dimethyl-1-phenylpentane-1,3-dione derivatives represented by the following formula (1): ##STR1## wherein all symbols are defined in the disclosure, is disclosed. An ultraviolet ray absorbent and a cosmetic comprising the derivative are also disclosed. The derivative of the present invention have excellent ultraviolet ray absorbing performance and superior light stability, and the ultraviolet ray absorbent and cosmetic comprising the derivative have excellent effect to prevent sunburn.

REFERENCES:
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patent: 3937737 (1976-02-01), Eiglmeier
patent: 4065502 (1977-12-01), MacKay et al.
patent: 5191121 (1993-03-01), Yamada et al.
Chem. Abs., 1989, vol. 111 (18):163961p, Yoshioka.
Chem. Abs., 1986, vol. 105(9):78293d, Yoshioka (I).
European Search Report, Sep. 28, 1992, EP 92 10 4695.
Chemical Abstracts, vol. 69, 1968, Columbus, Ohio, US; Abstract No. 10157V, Shalygin, A. F.: "Synthesis of some aromatic amino diketones", p. 959, col. 1.

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