Novel 4-phosphoryloxy-5-cyano-thiazoles of the formula ##STR1## wherein R is selected from the group consisting of alkyl of 1 to 6 carbon atoms, alkenyl of 2 to 6 carbon atoms, cycloalkyl of 3 to 8 carbon atoms and benzyl optionally substituted with 1 to 2 members of the group consisting of halogen,methyl and methoxy, R.sub.1 is selected from the group consisting of alkyl and alkoxy of 1 to 3 carbon atoms, R.sub.2 is alkyl of 1 to 3 carbon atoms and X and Z are individually selected from the group consisting of oxygen and sulfur having particularly insecticidal properties but also acaricidal and nematocidal properties.
A Convenient Synthesis of 1,2,4-Oxadiazolidine-3,5-dione
作者:P. Renaut、D. Thomas、F. D. Bellamy
DOI:10.1055/s-1991-26440
日期:——
A convenient three-step synthesis of 1,2,4-oxadiazolidine-3,5-dione involving debenzylation of 3-benzyloxy-1,2,4-oxadiazol-5(4H)-one with boron tribromide is reported. By contrast with the two known procedures, this synthesis requires only nonhazardous and commercially available reagents.