申请人:Sanko Kaihatsu Kagaku Kenkyusho
公开号:US05049685A1
公开(公告)日:1991-09-17
A nuclear substituted salicylic acid represented by the following general formula (I): ##STR1## (in the formula (I), R.sub.1 represents a methyl group, an isopropyl group, a tert-butyl group, a tert-amyl group, a tert-hexyl group, a tert-octyl group, an .alpha., .alpha.-dialkylbenzyl group or a nuclear substituted .alpha., .alpha.-dialkylbenzyl group; and R.sub.2 represents a tert-butyl group, a tert-amyl group, a tert-hexyl group, a tert-octyl group, an .alpha., .alpha.-dialkylbenzyl group or a nuclear substituted .alpha., .alpha.-dialkylbenzyl group) and a salt thereof are herein disclosed. The novel nuclear substituted salicylic acids and salts thereof according to the present invention have good solubility in water, organic solvents or organic polymeric compounds and, therefore, these compounds are very favorable as bactericidal and germicidal agents, stabilizers for polymeric compounds or color developing agents for recording materials.
下面是一种由以下通用式(I)表示的核取代水杨酸:##STR1## (在式(I)中,R.sub.1代表甲基基团、异丙基基团、叔丁基基团、叔戊基基团、叔己基基团、叔辛基基团、α,α-二烷基苯基基团或核取代的α,α-二烷基苯基基团;R.sub.2代表叔丁基基团、叔戊基基团、叔己基基团、叔辛基基团、α,α-二烷基苯基基团或核取代的α,α-二烷基苯基基团),以及其盐。本发明所述的新型核取代水杨酸及其盐在水、有机溶剂或有机聚合物中具有良好的溶解性,因此这些化合物非常适合作为杀菌和消毒剂、聚合物稳定剂或记录材料的显色剂。