Reference

The synthesis of some new 7-methyl-3-substituted-1,2,4-triazolo[3,4-b]benzothiazoles

The synthesis of some new 7-methyl-3-substituted-1,2,4-triazolo[3,4-b]benzothiazoles. Dong, Heng-Shan; Zhang, Ji-Yong; Tang, Yan-Bo; Mao, Xue-Rong; Quan, Bin (National Laboratory of Applied Organic Chemistry, Institute of Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, Peop. Rep. China). Journal of the Chinese Chemical Society (Taipei, Taiwan), 48(4), 783-786 (English) 2001 Chinese Chemical Society. CODEN: JCCTAC. ISSN: 0009-4536. DOCUMENT TYPE: Journal CA Section: 28 (Heterocyclic Compounds (More Than One Hetero Atom)) New 7-Methyl-3-substituted-1,2,4-triazolo[3,4-b]benzothiazoles were synthesized from p-methylaniline and various arom. carboxylic acids. Thus, the cyclocondensation of 6-methyl-2(3H)-benzothiazolone hydrazone with 1-(4-chlorophenyl)-5-methyl-1H-1,2,3-triazole-4-carboxylic acid, (2,4-dichlorophenoxy)acetic acid, 2-phenyl-4-quinolinecarboxylic acid, 5-methyl-1-(4-methylphenyl)-1H-1,2,3-Triazole-4-carboxylic acid, etc. was reported.

Developments in Pd catalysis: synthesis of 1H-1,2,3-triazoles from sodium azide and alkenyl bromides

All Rights Reserved. Developments in Pd catalysis: synthesis of 1H-1,2,3-triazoles from sodium azide and alkenyl bromides. Barluenga, Jose; Valdes, Carlos; Beltran, Gustavo; Escribano, Maria; Aznar, Fernando (Instituto Universitario de Quimica Organometalica "Enrique Moles", Unidad Asociada al CSIc, Universidad de Oviedo, Oviedo 33006, Spain). Angewandte Chemie, International Edition, 45(41), 6893-6896 (English) 2006 Wiley-VCH Verlag GmbH & Co. KGaA. CODEN: ACIEF5. 796034-32-7 and 333309-74-3 are also in the experiment. ISSN: 1433-7851. DOCUMENT TYPE: Journal CA Section: 28 (Heterocyclic Compounds (More Than One Hetero Atom)) 1H-1,2,3-Triazoles are directly obtained by reaction of alkenyl bromides and sodium azide in the presence of a Pd0-xantphos catalyst. .