| abstract |
Compounds are described of formula (I)n EMI PA=00 FR=1 HE=90 WI=130 TI=CHEn and salts thereof, wherein R 1 a methyl, ethyl or isopropyl group; R 2 is -H, -OH, substituted -OH or a phosphate ester group) and R 3 is -H, or R 2 and R 3 together with the carbon atom to which they are attached represent a >C=0 group and OR 4 is a group OR 5 as defined above; with the proviso that either R 2 represents a group OR 5 (where OR 5 is an alkoxy group OR 7 in which R 7 represents a C 1-6 alkyl substituted by a halogen atom or C 2 - 6 alkyl interrupted by -0- or -S-) or at least one of R 2 and OR 4 is a phosphate ester group or a group OCONR 10 R 11 (where R 10 and R 11 are -H or C 1-4 alkyl). These compounds may be used for controlling insect, acarine, nematode or other pests. |