abstract |
Aryloxiranes of formula (I) are new: where R1 is a gp. of formula (II)-(XII); X1 is halogen, 1-4C alkyl, 1-4C haloalkyl, 1-4C alkoxy, nitro, cyano, amido, 1-4C acylamino or 1-4C alkylsulphonyl; n is 0-4; when n is 2-4 then the various X1 may be the same or different; R2 is H or alkoxy. |