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1. 发明授权

US3624138A Phenol formates 失效
标题翻译： PHENOL FORMATES
公开(公告)号：US3624138A
公开(公告)日：1971-11-30
申请号：US3624138D
申请日：1966-09-29
申请人： SANKYO CO
发明人： MURAYAMA KEISUKE , MORIMURA SHYOJI , YOSHIOKA TAKAO , HORIUCHI HIDEO
IPC分类号： C07C69/06 , C08K5/10 , C09K15/08 , C11B5/00
CPC分类号： C09K15/08 , C07C69/06 , C08K5/10 , C11B5/00
摘要： WHEREIN R, m and t-Bu are as defined above with (A) a formamide derivative and a chloride or (B) formic acid in the presence of an esterification catalyst. The phenol formates are superior antidegradants and stabilizers.

WHEREIN R is a straight or branched alkyl, m is O to 3 and t-Bu is tert-butyl. Such phenol formates are prepared by reacting an alkyl phenol of the formula

New phenol formates of the formula

3. 发明专利

DE1543876A1 未知
公开(公告)号：DE1543876A1
公开(公告)日：1970-02-05
申请号：DES0106194
申请日：1966-09-29
申请人： SANKYO CO
发明人： MURAYAMA KEISUKE , MORIMURA SHYOJI , YOSHIOKA TAKAO , HORIUCHI HIDEO
IPC分类号： C07C69/06 , C08K5/10 , C09K15/08 , C11B5/00
摘要： 1,135,103. Phenol formates. SANKYO CO. Ltd. 29 Sept., 1966 [7 Oct., 1965 (2)], No. 43542/66. Heading C2C. The invention relates to the phenol formates of the general formula in which R is a straight or branched alkyl group, m is 0 to 3 and where m is 2 or 3 the R's may be the same or different and t-Bu represents tertiary butyl group. Compounds claimed per se are: 3-methyl-6-tert.-butyl phenol formate, 4-methyl-6-tert.-butyl phenol formate, 2,4-di-tert.-butyl-5-methyl phenol formate, 4-tert.-octyl-6-tert.-butyl phenol formate, 2,4-di-tert.-butyl phenol formate. The compounds may be prepared by reacting a compound of the general formula with formic acid in the presence of an esterification catalyst, e.g. polyphosphoric acid and its alkyl esters, p-toluenesulphonic acid and phosphorous oxychloride. The compounds may also be prepared by subjecting a compound of Formula (II) to a Vilsmeier reaction, e.g. by employing a formamide derivative selected from dimethyl or diethyl or methyl formamide and methyl phenyl formamide and a chloride selected from phosphorous oxychloride, phosgene, thionyl chloride and phosphorous pentachloride.

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