A conceptually new and general strategy has been developed for the construction of a benzimidazole or a benzoxazole ring fused with isoquinolinone affording a diverse and unique class of small molecules as potential and novel inhibitors of PDE4.

Fibrous nanoaggregates of a new benzoxazole-based derivative have been reported. This derivative exhibits not only H-aggregates but also strong yellow fluorescence, which is different from the traditional understanding of H-aggregates.

Substituted aromatic amines were diazotized followed by coupling with malononitrile to afford substituted phenyl hydrazono-malononitrile compounds 2a-c. Compounds 3a-c were prepared through the reaction of substituted phenyl hydrazono-malononitriles 2a-c with phenyl hydrazine, while the reaction of compounds 2a-c with hydrazine hydrate afforded diamino compounds 4a-c. The diamino compounds 4a-c...

ABSTRACT: An efficient, cost effective and ecologically safe method for the design of series novel 2-[(4-chloro-1,3-benzoxazol-2-yl)sulfanyl]-N'-[phenylmethylidene] acetohydrazides 5(a-j) have been synthesized by fusing 2-[(4-chloro-1,3-benzoxazol-2-yl)sulfanyl] acetohydrazide with substituted aromatic aldehyde. The prepared compounds were characterized via LC-MS, IR, 1H NMR, 13C NMR C, H, N an...