Preparation of alpha-(3,4-disubstituted aryl) cyclic ketones
    4.
    发明授权
    Preparation of alpha-(3,4-disubstituted aryl) cyclic ketones 失效
    α-(3,4-二取代芳基)环酮的制备

    公开(公告)号:US4992591A

    公开(公告)日:1991-02-12

    申请号:US454670

    申请日:1989-12-21

    摘要: A method for producing a compound of the formula ##STR1## wherein: R.sup.1, R.sup.11 and R.sup.12 may be the same or different and each is hydrogen or alkyl;Q is methylene, --O-- or --S--;m and n are independently variable and may each have a value of 0, 1 or 2;X is hydrogen, halo, alkyl, alkylthio, alkylsulfinyl, alkylsulfonyl, hydroxy, alkoxy or trifluoromethyl;Y is hydrogen, hydroxy, alkoxy, ##STR2## --N(R.sup.1).sub.2, ##STR3## where R.sup.1 is as defined above; ring t represents a fused thiophene or fused benzene ring, said fused benzene ring optionally being substituted with a substituent Z as defined below; andZ is X as defined above, amino, alkylamino or ##STR4## {wherein R.sup.10 is hydrogen, alkyl or aryl}, comprising reacting a compound of formula II or formula III ##STR5## with a compound of the formula where Hal is a halogen; andR.sup.13 is acetyl, or Si(R.sup.14).sub.3 where each R.sup.14 independently is alkyl or aryl is disclosed.

    摘要翻译: 制备下式化合物的方法其中:R 1,R 11和R 12可以相同或不同,各自为氢或烷基; Q是亚甲基,-O-或-S-; m和n独立地是可变的,并且各自可以具有0,1或2的值; X是氢,卤素,烷基,烷硫基,烷基亚磺酰基,烷基磺酰基,羟基,烷氧基或三氟甲基; Y是氢,羟基,烷氧基,其中R 1如上所定义; -N(R 1)2, 环t表示稠合噻吩或稠合苯环,所述稠合苯环任选被如下定义的取代基Z取代; 并且Z是如上定义的X,氨基,烷基氨基或者其中R 10是氢,烷基或芳基},包括使式II或式III化合物与式 其中Hal是卤素; 和R 13是乙酰基,或Si(R 14)3,其中每个R 14独立地是烷基或芳基。