A general study of the iron‐catalyzedreaction of urea with nucleophiles is here presented. The carbamoylation of alcohols allows for the synthesis of N‐unsubstituted (primary) carbamates, including present drugs (Felbamate and Meprobamate), without the necessity to apply phosgene and related derivatives. Using amines as nucleophiles gave rise to the respective mono‐ and disubstituted ureas via selective
The present invention provides fungicidal 4-substituted-3-phenyl[(heterocyclylmethoxy)imino]methyl}-1,2,4-oxadiazol-5(4H)-one derivatives of formula (I)
wherein A represents a pyridyl or thiazole group and X1, Y1 to Y5 represent independently different substituents.