Synthesis,Crystal Structure and Fungicidal Activity of(E)-2-[(4-tert-Butyl-5-(4-methoxybenzyl)thiazol-2-ylimino)methyl]phenol

The title compound （E）-2-[（4-tert-butyl-5-（4-methoxybenzyl）thiazol-2-ylimino）methyl]phenol was synthesized by the reaction of 5-（4-methoxybenzyl）-4-tert- butylthiazol-2-amine with salicylaldehyde, and its crystal structure was determined by single-crystal X-ray diffraction. The crystal belongs to the monoclinic system, space group P21/c with a = 5.9362（8）, b = 11.5070（15）, c = 29.460（4）A, β= 97.326（3）°, V = 1995.9（5） A^3, Z = 4, F（000） = 808, C22H24N2O2S, Mr= 380.49, De= 1.266 g/cm^3, S = 1.031,μ = 0.181 mm^-1, the final R = 0.0474 and wR = 0.1441 for 4327 observed reflections （I 〉 2σ（I））. Intramolecular O-H…N hydrogen bond is observed in the crystal. The preliminary bioassay showed that the title compound exhibits 95% inhibition rate against Rhizoctonia solani at the test concentration of 500 mg/L.

新显色剂2-(5-羧基-1,3,4-三氮唑偶氮)-5-二乙氨基酚的合成及其与铋的显色反应

首次合成了新显色剂２－（５－羧基－１，３，４－三氮唑偶氮）－５－二乙氨基酚（简称ＣＴＺＡＰＮ），研究了它的性质及其与铋显色反应的条件。结果表明：试剂的分子式Ｃ１３Ｈ１６Ｎ６Ｏ３分子量３０４．３２，ｍ．ｐ． ２５２℃，各级酸离解常数为ＰＫａ１＝３．１，ＰＫａ２＝７．５，ＰＫａ＝９．６；在ＰＨ ７的 ＮＨ４Ａｃ介质中，试剂与铋形成紫红色络合物，λｍａｘ为 ５４０ ｎｍ，对比度△λ为 １２０ ｎｍ，络合比Ｂｉ３＋：Ｒ＝１：２，摩尔吸光系数５．１３ ×１０４Ｌ·ｍｏｌ－１·ｃｍ－１，Ｂｉ３＋在０～１．８ ｍｇ／Ｌ范围内遵守比耳定律，在掩蔽剂的作用下，可不经分离直接测定合金样品及合成工业废水中微量铋，结果满意。

Crystal Structure of Phenol,2-[4(S)-4-Dihydro-4-benzyl-2-ozazolinyl]

The compound phenol,2-[4（S）-4,5-dihydro-4-phenyl-2-ozazolinyl（1,C15H13NO2） was synthesized with a simple,one step method free of water and air.It was obtained in a moderate yield from the reaction of 2-hydroxybenzonitrile with optically active amino alcohol in chloroben-zene under dry,anaerobic conditions.It belongs to the orthorhombic system,space group P212121 with a = 5.786（5）,b = 10.730（5）,c = 19.722（5）,C15H13NO2,Mr = 239.26,V = 1224.4（12）3,Z = 4 and Dc = 1.298 mg/m3.The final R = 0.0324 for 1627 observed reflections with Ⅰ 〉 2σ（Ⅰ） and Rw = 0.0826 for all data.The structure of compound 1 was determined by X-ray diffraction,NMR and HRMS.

A Phenolic Glucoside from Alangium plantanifolium

A novel phenolic glucoside was isolated from stem barks of Alangium plantanifolium, its structure was elucidated to be 1-O-[2-(1-hydroxy-6-oxocyclohex-2-ene-1-carboxymethyl) -phenyl]-4, 6-O-[(S)-4, 4', 5, 5', 6, 6'-hexahydroxydi-phenoyl]-beta -D-glucopyranose 1 by spectroscopic methods including 2D NMR techniques.

Syntheses, Characterization and Biological Activity of Novel Thiazoylazo Dye and Its Coordination Compounds

The present work describes the synthesis of a novel heterocyclic azo dye by general diazonization of 2-amino-4,5-dimethylthiazole followed by the diazo- coupling of the resulting diazonium ion with 5-methyl-2-(propan-2-yl)phenol to obtain ligand L. This was characterized using Fourier-transformed infrared and electronic spectrophotometry. Ligand L was further coordinated with five metal ions, M:L, 1:2 [M = Cu(II), Mn(II), Zn(II), Ni(II) and Co(II)]. The coordination compounds obtained were characterized by electronic, IR spectrophotometry, magnetic susceptibility and percentage metal analyses. The results obtained suggested that a thiazoylazo dye was obtained as ligand L. It was proposed that two molecules of the solvent coordinated to the metal ion in addition with the ligands to give an octahedral geometry for copper(II), manganese(II) and nickel(II) complexes. On the other hand, square planar geometry was suggested for zinc(II) and cobalt(II) complexes. The anti-infla- mmatory activity of the ligand and coordination compounds was evaluated using four in vitro-based assays viz: xanthine oxidase and lipoxygenase inhibition assay, membrane stability and protein denaturation assay. The synthesized compounds generally exhibited good anti-inflammatory activity in all the assays carried out. However, the reference standards, in this instance, were more effective in the case of xanthine oxidase, lipoxygenase and protein denaturation inhibitory assays. For the membrane stability study, the coordination compounds and ligand L elicited more potent anti-inflammatory activity than the standard drug.