Abstract: A fungicidal composition which comprises a compound of general formula: ##STR1## or acid addition salts or metal complexes thereof, wherein R.sup.1 and R.sup.2 each independently represents a C.sub.1-5 alkyl group or a hydrogen atom; X represents a halogen atom, a C.sub.1-5 alkyl group or a phenyl group; n is 0, 1 or 2 and A represents a nitrogen atom or CH; and an aliphatic alcohol alkoxylate, for example an ethoxylate, with an average of 5-9 ethylene oxide units per molecule, of a C.sub.9-15 aliphatic alcohol, as adjuvant. It has been found that the presence of the alkoxylate substantially enhances the fungicidal efficacy of a compound of general formula I, in particular in foliar spray applications against fungi which are pathogenic to cereal crops.

Abstract: A process for the conversion of a stereoisomer into its diastereoisomer of a compound having the following general formula: ##STR1## (wherein the asterisk denotes an asymmetric carbon atom; each X is individually hydrogen, alkyl, aryl, alkaryl, aralkyl, alkoxy, aryloxy, halogen, nitro, hydroxy or cyano; R is an organic residue containing one or more centers of asymmetry; and n is 1 to 5), which comprises subjecting the said stereoisomer to the action of an alkali metal carbonate and an inert polar solvent at a temperature in the range 20.degree. to 100.degree. C. and physically separating the required diastereoisomer from the resulting mixture of diastereoisomers.