| 摘要 |
NEW MATERIAL:A compound of formula I [X is H, halogen, hydroxyl, cyano, alkoxy(alkoxy), formula II (R1 is lower alkyl which may be substituted with cyano; R2 is lower alkyl which may be substituted with cyano, benzyl which may be substituted with P), formula III-V (R is H, lower alkyl, aryl); Ar, Ar' are formula VI, VII (Y1, Y2 are H, halogen, alkyl); W is =N-, =CH-; m is 1, 2, when m is 2, Ar may be different]. EXAMPLE:The compound of formula VIII. PREPARATION:4-Amino-4'-cyanobiphenyl of formula IX is diazotized and coupled with a compound of formula X. The product is hydrolyzed, the resultant monoazo compound is further diazotized and coupled with a compound of formula XI (X' is OH, amino and formula II) to give the compound of formula I where m is 1.
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