benzoxazole 2,4-thiazolidinediones was synthesized and evaluated for hypoglycemicactivity in genetically obese and diabetic yellow KK mice. 2-Arylmethyl- and 2-(heteroarylmethyl)benzoxazole derivatives showed far more potent activity than known 2,4-thiazolidinedione derivatives such as ciglitazone, troglitazone and pioglitazone. A facile synthesis of benzoxazole 2,4-thiazolidinediones was also established using
Synthesis, characterization and Pd(<scp>ii</scp>)-coordination chemistry of the ligand tris(quinolin-8-yl)phosphite. Application in the catalytic aerobic oxidation of amines
作者:R. E. Rodríguez-Lugo、M. A. Chacón-Terán、S. De León、M. Vogt、A. J. Rosenthal、V. R. Landaeta
DOI:10.1039/c7dt04000h
日期:——
metal precursor [Pd(COD)Cl2] (COD = 1,5-cyclooctadiene, C8H12) is reported. A new Pd(II)–P(Oquin)3 metal complex was isolated and fully characterized ([PdP(Oquin)3}Cl2]), and its X-ray diffraction analysis shows that the phosphite ligand coordinates as a bidentate P–N chelate. This complex is an efficient catalyst for the solvent-free mild oxidative coupling of primary amines to iminesusing air as
Novel benzoxazole derivatives of the formula: ##STR1## wherein R is a substituted or unsubstituted phenyl group, a substituted or unsubstituted naphthyl group, a substituted or unsubstituted cycloalkyl group or a substituted or unsubstituted heterocyclic group; Alk is single bond, a substituted or unsubstituted lower alkylene group, a lower alkenylene group or a lower alkynylene group; the group is a group of the formula: --CH.sub.2 -- or --CH.dbd., and a pharmaceutically acceptable salt thereof are disclosed. Said derivative (I) and a salt thereof are useful as therapeutic agents for diabetes.
Pentacoordinated Complexes of Triphenyltin(IV) with Bidentate N-Phenyl-o-iminophenols
作者:N. A. Protasenko、S. V. Baryshnikova、A. V. Cherkasov、A. I. Poddel’skii
DOI:10.1134/s1070328422070077
日期:2022.8
Abstract The reactions of functionalized o-iminophenols L1H–L5H (L1H is 2-benzylideneaminophenol, L2H is 2-benzylideneamino-5-methylphenol, L3H is 2-benzylideneamino-5-chlorophenol, L4H is 2-benzylideneamino-3-nitrophenol, and L5H is 2-benzylideneamino-4-nitrophenol) with triphenyltin(IV) bromide in the presence of the base afford the corresponding triphenyltin complexes I–V with o-iminophenolate ligands
摘要 官能化邻亚氨基酚 L 1 H–L 5 H 的反应(L 1 H 是 2-苯亚甲基氨基苯酚,L 2 H 是 2-苯亚甲基氨基-5-甲基苯酚,L 3 H 是 2-苯亚甲基氨基-5-氯苯酚,L 4 H是 2-亚苄基氨基-3-硝基苯酚,L 5 H 是 2-亚苄基氨基-4-硝基苯酚)与溴化三苯基锡(IV)在碱存在下得到相应的三苯基锡配合物I – V与一般的邻亚氨基酚配体形成 (L n )SnPh 3。配合物II的分子结构和晶体形式的III通过 X 射线衍射测定(CIF 文件 CCDC № 2131549 ( II ) 和 2131548 ( III ))。