STYRENE DERIVATIVE AND METHOD OF PRODUCTION THEREOF, POLYSTYRENE DERIVATIVE PRODUCED THEREFROM AND METHOD OF PRODUCING THE SAME, AND ULTRAVIOLET ABSORBENT AND COSMETICS CONTAINING SAID POLYSTYRENE DERIVATIVE AS ACTIVE INGREDIENT
申请人:EARTH CHEMICAL CO., LTD.
公开号:EP0423373A1
公开(公告)日:1991-04-24
A styrene derivative represented by general formula (1), wherein one of R1 R2 represents vinylbenzyl, and the other represents hydrogen, lower alkyl, C2 to C5 carboxyalkyl, or phenyl; R 3 represents hydrogen, halogen, lower alkyl, carboxyl, C2 to Cs carboxyalkyl, C3 to C6 carboxyalkenyl, C1 to C 4 alkylamino or nitro; Q represents sulfur or oxygen; and X represents (a), (b), (c) ou (d).
通式(1)所代表的苯乙烯衍生物,其中 R1 R2 的一个代表乙烯基苄基,另一个代表氢、低级烷基、C2 至 C5 羧基烷基或苯基;R 3 代表氢、卤素、低级烷基、羧基、C2 至 Cs 羧基烷基、C3 至 C6 羧基烯基、C1 至 C 4 烷基氨基或硝基;Q 代表硫或氧;X 代表(a)、(b)、(c)或(d)。