The syntheses and crystal structure of novel 5-methyl-3-substituted-1,2,4-triazolo[3,4-b]benzothiazoles
作者:Heng-Shan Dong、Bin Quan、Er-Feng Chai、Xue-Rong Mao
DOI:10.1016/s0022-2860(01)00923-1
日期:2002.8
Abstract Novel 5-methyl-3-substituted-1,2,4-triazolo[3,4-b]benzothiazoles were synthesized from o -methylaniline to 5 with various aromatic carbonic acids. The yielded product 6a – e were confirmed by Elemental Analyses, NMR, MS, IR spectra and 6e was investigated with X-ray crystallography. Compound 6e , C 24 H 16 N 4 S, Mr=392.69, crystallized in the triclinic space group P 1 with unit cell parameters
摘要 以邻甲基苯胺到5与各种芳香族碳酸为原料合成了新型5-甲基-3-取代-1,2,4-三唑并[3,4-b]苯并噻唑。得到的产物 6a-e 经元素分析、核磁共振、质谱、红外光谱证实,6e 经 X 射线晶体学研究。化合物6e,C 24 H 16 N 4 S,Mr=392.69,在三斜空间群P 1 中结晶,晶胞参数a =9.713(3) A, b =14.645(4) A, c =15.641(3) A , α =113.17(2)°, β =90.11(2)°, γ =109.29(2)°, V =1908.1(7) A 3 , Z =4, D m =1.366 Mgm -3 。