Abstract Three styrylbenzoxazole derivatives with terminal dicyanomethylene group were studied in order to understand how minor modifications brought the benzoxazole ring influence photoluminescence (PL) properties. The three compounds, which several molecular motions are allowed, weakly fluorescent organic solution. Remarkably, unsubstituted (1) and methoxy (2) showed clear solid-state lumines...

In the title mol-ecule, C(22)H(15)NO(3), the configuration about the ethyl-enic double bond is Z configuration and it is approximately coplanar with the adjacent phenyl ring and benzoxazole ring system as indicated by the C(H)=C(O)-C(phen-yl)-C(phen-yl) and O(benzoxazole)-C-C(H)=C(O) torsion angles of 179.88 (15) and 5.7 (2)°, respectively. The dihedral angle between the essentially planar (r.m...

Some novel fused heterocyclic compounds of 2,5-disubstituted-benzoxazole derivatives, which were previously synthesized by our group, were investigated for their mutagenic properties on Salmonella typhimurium TA 98 and TA 100 strains, cytotoxic activity in L929 and HeLa cell lines by Sulforhodamine B (SRB) cytotoxicity test, and genotoxic potentials in the comet assay. By using Ames/Salmonella ...

A linear coplanar carbazole-based benzoxazole derivative without any auxiliary moieties could gelatinize organic solvents, and exhibited emission enhancement owing to the J-aggregate formation.

Because of the premature failure of in-service soft-body armor containing the ballistic fiber poly[(benzo-[1,2-d:5,4-d']-benzoxazole-2,6-diyl)-1,4-phenylene] (PBO), the Office of Law Enforcement Standards (OLES) at the National Institute of Standards and Technology (NIST) initiated a research program to investigate the reasons for this failure and to develop testing methodologies and protocols ...

A triphenylamine-based benzoxazole derivative exhibits a low contrast piezofluorochromic behavior under external pressure, and a high-contrast fluorescence change induced by protonation can be observed.

We have obtained the X-ray crystal structure of galectin-8 N-terminal domain (galectin-8N) with a previously reported quinoline–galactoside ligand at resolution 1.6 Å. Based on this structure, collection galactosides derivatised O3 triazole, benzimidazole, benzothiazole, and benzoxazole moieties were designed synthesised. This led to discovery 3-O-(N-methylbenzimidazolylmethyl)–galactoside Kd 1...