Shell Oil Comapny

Shell Internationale Research Maatschappij, B.v.

Ernest Haddock

John R Wilson

Herbert P Rosinger

Clive A Raven

Alan J Sampson

The invention provides thiazole derivatives of general formula I; ##STR1## or an acid-addition salt or metal salt complex thereof, in which R represents an optionally substituted aryl group; R.sup.1 represents a hydrogen atom or an optionally substituted alkyl, alkenyl or alkynyl group; R.sup.2 represents a hydrogen or halogen atom or an alkyl, haloalkyl, alkoxy, haloalkoxy, alkylthio, hydroxyl, cyano, nitro, amino, alkylamino, dialkylamino or morpholine group; X represents an oxygen or sulphur atom, a carbonyl group or a group --CR.sup.4 R.sup.5 -- where R.sup.4 and R.sup.5 independently represent a hydrogen atom or an alkoxy group; Y represents an oxygen or sulphur atom; n represents an integer from 0 to 6; m is 0 or 1; and Z represents a phenyl group; processes for their preparation; compositions containing such compounds and their use as fungicides.

Thiazole derivatives

Weeds are controlled by N-substituted alanine compounds of the general formula: ##STR1## wherein the symbols have defined meanings.

Control of weeds with N-substituted alanine compounds

N,N-disubstituted alanine derivatives of the formula: ##SPC1## Wherein R is C.sub.1 -C.sub.3 alkyl, useful as selective herbicides.

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Sheerness, United Kingdom

Ernest Haddock