| abstract |
Substituted [1,1-biphenyl]-3-ylmethyl compounds of the formulan are novel and used as intermediate compounds in the production of insecticides. In the formula Y is Br or OH and (i) b is 0 and (A) a is (2 or 6)-(Cl, Br or F), 4-(Cl or F), 5-F, 2-alkyl, 2-CF 3 , difluoro, 2,4-dichloro, 2,4-dibromo, trifluoro or tetrafluoro or (ii) a is 0 and (B) b is Cl, Br, F, (2' or 3')-alkyl, (2' or 3')-CF 3 , (2' or 3')-alkoxy, difluoro, trifluoro, tetrafluoro, pen- tafluoro, 2',4'-dichloro or 2', 4'-dibromo. |