1,3-disubstituted aliphatic and aromatic symmetrical and unsymmetrical
thioureas were synthesised by novel routes and the antifungal activit
ies of these compounds against two plant pathogens, Pyricularia orpzae
and Drechslera oryzae were studied in Czapek-Dox medium at four diffe
rent concentrations using acetone as the control and the structure-act
ivity relationship among the substituted thioureas is reported. (C) 19
98 SCI.