| 摘要 |
Diphenylmethane derivatives represented by the formula, WHEREIN R1 is -OR, -COOR or -CH2OR, in which R is propargyl or allyl; R2 and R3 are hydrogen a halogen, an alkyl or methylenedioxy bonded to two carbon atoms adjacent to each other on the benzene ring; when R is propargyl R4 is hydrogen, an alkyl, -OR', -COOR', -CH2OR' or IN WHICH R' is propargyl, allyl or an alkyl and R'' is an alkyl or a halogen, when R is allyl R4 is -OR''', -COOR''' or -CH2OR''' in which R''' is allyl or an alkyl; m and n are an integer of 1 to 5 and when m and/or n are an integer of 2 or more, R2's and/or R3's may be the same or different; the diphenylmethane derivatives being employable as synergists for insecticides.
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