prov:value
| - Suitable hydrazides which can be used in the practice of this invention can be represented by the general structural formula: RiNH-NH-d-Ri wherein R is an aryl group including substituted aryl groups are exemplified by phenyl, naphthyl, alkaryl, such as, tolyl, xylyl, mesityl, ethylphenyl, propylphenyl, halide substituted phenyl such as bromophenyl, dichlorophenyl, carboxyphenyl and the like; and
|