3,4-METHANO PYRROLIDINE DERIVATIVES

摘要

3,4-Methano pyrrolidine derivatives of the general formula: wherein R1 represents hydrogen, alkyl, alkenyl, alkynyl, aryl, or aralkyl, optionally substituted by one or more halogen atoms, alkyl or alkoxy groups; a group wherein X represents an oxygen or sulphur atom, and R3 represents a group -NR1R1, a group N(R1)-NR1R1, in which both R1's, together with the nitrogen atom to which they are attached form a heterocyclic ring or a group (X)nR4, wherein n is 0 or 1 and R4 has the same meaning as R1, or represents a metal ion of (sub)group I or II of the Periodic Table, an ammonium or an alkyl substituted ammonium ion; a cyano group, an oxygen moiety or the group -NO, or an alkyl- or arylsulphonic or -sulphinic acid group; and R2 represents a group wherein X and R3 have the meaning as defined hereinbefore; a group -CH2(X)R4 or a group -CH(XR4)(XR5), wherein X and R4 have the meaning as defined hereinbefore and R5 has the same meaning as R1; or the corresponding amine hydrogen halide acid salt, with the proviso that when R1 is a hydrogen atom, R2 does not represent a group wherein R6 represents a hydrogen atom, an alkali(ne earth) metal, ammonium or alkylammonium ion or an alkyl group of up to 10 carbon atoms. Compositions thereof and a method for sterilizing male anthers in plants.