Thirteen new aroyl ureas were synthesized by the reaction of 2-amino-5-(1o-chlorophenoxyethyl)-1,3,4-thiodiazole with aroyl isocyanates,and their structures were confirmend by IR,~(1)H NMR and elemental(analysis).

Thirteen N-(1,3,4-thiodiazol-2-y1)-N′-aroyl ureas were synthesize d by the reaction of aroyl iso-cyanates with 2-amino-1,3,4-thiodiazole i n yields of 54.

Synthesis and characterization of a new kind of chloro susbstituted soluble aromatic polyamides with pendant cyano groups;

Studies on Synthesis, Thermal Properties and Solubility of Aromatic Polyamides Containing Phthalazinone Moiety;

High molecular weight aromatic polyamides were prepared from homemade 1,2 -dihydro -2 -(4 -aminophenyl) -4 -[4 -(4 -aminophenonxyl)phenyl] -phthalazin -1 -one (DHPZ -DA), 4,4' -diamino diphenyl methane (DAPM), p-phenylene diamine and terephthalic acid via direct polycondensation reaction in N-methylpyrrolidone, using triphenyl phosphite and pyridine as condensing agents.

Synthesis and characterization of poly(aryl amide)with ether groups and pendant cyano groups;

Synthesis, Characterization and Properties of New Soluble Phthalazinone Moiety-based Aromatic Poly(aryl amide)s Containing Chlorine Substituents;