Process for the preparation of biphenyl derivatives
    1.
    发明授权
    Process for the preparation of biphenyl derivatives 失效
    联苯衍生物的制备方法

    公开(公告)号:US5618975A

    公开(公告)日:1997-04-08

    申请号:US449396

    申请日:1995-05-24

    摘要: Biphenyl derivatives and processes for the preparation of biphenyl derivatives are described. A compound of formula (I) is disclosed ##STR1## in which the substituent X is --CHO or --CH(OR.sup.1)OR.sup.2, where R.sup.1 and R.sup.2 independently of one another are (C.sub.1 -C.sub.6)-alkyl or R.sup.1 and R.sup.2 together are an alkylene group (--CH.sub.2).sub.n --, where n is 2, 3 4 or 5 and R is --F, --Cl, --NO.sub.2, --(CH.sub.2).sub.m --COOR.sup.3, --(CH.sub.2).sub.m --CONHR.sup.3, --(CH.sub.2).sub.m --CN, --SO.sub.2 NH--COOR.sup.3, --SO.sub.2 NH--CO--NHR.sup.3, --SO.sub.2 NH--SO.sub.2 --R.sup.3, --NHSO.sub.2 R.sup.3, ##STR2## --PO.sub.3 R.sup.3, --NH--SO.sub.2 --CF.sub.3, --SO.sub.2 NR.sup.4 where R.sup.3 is hydrogen, (C.sub.1 -C.sub.6)-alkyl, (C.sub.3 -C.sub.6)cycloalkyl, or (C.sub.1 -C.sub.6)-alkyl-(C.sub.3 -C.sub.6)cycloalkyl and R.sup.4 is a group .dbd.C--N(CH.sub.3).sub.2, and m is 0, 1, 2, 3, or 4. The invention also relates to a process for the preparation of a compound of the formula (I) in which X is an optionally protected formyl group and R is a group which is itself inert to the reaction conditions of the synthesis, which comprises reacting a compound of the formula (II) ##STR3## with a substituted phenyl-halogen compound of the formula (III) ##STR4## wherein the substituent Hal is a halogen group.

    摘要翻译: 描述了联苯衍生物和制备联苯衍生物的方法。 公开了式(I)化合物,其中取代基X为-CHO或-CH(OR 1)OR 2,其中R 1和R 2彼此独立地为(C 1 -C 6) - 烷基或R 1和 R2一起是亚烷基(-CH 2)n - ,其中n是2,3,4或5,R是-F,-Cl,-NO 2, - (CH 2)m -COOR 3, - (CH 2)m -CONHR 3, - (CH2)m-CN,-SO2NH-COOR3,-SO2NH-CO-NHR3,-SO2NH-SO2-R3,-NHSO2R3,-PO3R3,-NH-SO2-CF3,-SO2NR4,其中R3是氢, (C 1 -C 6) - 烷基,(C 3 -C 6)环烷基或(C 1 -C 6) - 烷基 - (C 3 -C 6)环烷基,R 4是基团= CN(CH 3)2,m是0,1,2 ,3或4.本发明还涉及一种制备式(I)化合物的方法,其中X是任选保护的甲酰基,R是本身对于合成的反应条件是惰性的基团 其包括使式(II)化合物(II)与式(III)取代的苯基 - 卤素化合物(III)反应,其中取代基Hal为卤素基团。