Spiro morpholine compounds, compositions and insecticidal and nematocidal use

摘要

A compound of formula (I): <IMAGE> (I) or a salt thereof; where Z represents a heterocyclic ring and R2 and R3 are independently selected from hydrogen, nitrile, CONH2 and SO2R4 wherein R4 is optionally substituted aryl, optionally substituted alkyl, aralkyl or cycloalkyl or R2 and R3 together form an optionally substituted methylene group or a bond, intermediates, compositions and insecticidal and nematocidal use.