C - Chemistry – Metallurgy – 07 – C
Patent
C - Chemistry, Metallurgy
07
C
260/557, 260/600
C07C 33/46 (2006.01) C07C 43/23 (2006.01) C07C 149/36 (1980.01)
Patent
CA 1181768
ABSTRACT This invention relates to novel esters, useful as insecticides, of formula:- Image where R1 and R2 are methyl, halomethyl or halo; X is oxygen, sulphur, sulphonyl or NR4 where R4 is hydrogen, alkyl or carboxylic acyl; R3 is alkyl, alkenyl or benzyl and additionally R3 may be hydrogen when X is NR4; m=0 or 1 and n=1 to 4. The compounds may be prepared by esterification process from the corresponding benzyl alcohols which are also new compounds. e
402850
Barlow Charles Brian
Zeneca Limited
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