Shestopalov, A. M.; Sharanin, Yu. A.; Rodinovskaya, L. A., Journal of Organic Chemistry USSR (English Translation), 1990, vol. 26, # 7.2, p. 1371 - 1375
Facile Synthesis of Heterocycles via 2-Picolinium Bromide and Antimicrobial Activities of the Products
作者:Elham Darwish
DOI:10.3390/molecules13051066
日期:——
The 2-picolinium N-ylide 4, generated in situ from the N-acylmethyl-2-picolinium bromide 3, underwent cycloaddition to N-phenylmaleimide or carbondisulfide to give the corresponding cycloadducts 6 and 8, respectively similar reactions of compound 3 with some electron-deficient alkenes in the presence of MnO(2) yielded the products 11 and 12. In addition, reaction of 4 with arylidene cyanothioacetamide
作者:A. M. Shestopalov、O. P. Bogomolova、V. P. Litvinov
DOI:10.1055/s-1991-26445
日期:——
Interaction of 1-(1-adamantylcarbonylmethyl)pyridinium bromide (1) with arylmethylenecyanothioacetamides 2 proceeds stereoselectively with formation of 2-(1-adamantylcarbonyl)-5-amino-3-aryl-4-cyano-2,3-dihydrothiophenes. Dihydrothiophenes were obtained in a good yield by three-component condensation of pyridinium bromide 1, aldehydes and cyanothioacetamide in presence of triethylamine.
Ensembles of rings with a coumarin unit 1. Synthesis of 3-(2-R-thiazol-4-yl)-and 3-(4-R-thiazol-2-yl)coumarins
作者:Ya. V. Belokon'、S. N. Kovalenko、A. V. Silin、V. M. Nikitchenko
DOI:10.1007/bf02290865
日期:1997.10
Acetoacetanilides in synthesis of 4-aryl-5-arylcarbamoyl-6-methyl-3-cyanopyridine-2(1H)-thiones
作者:V. D. Dyachenko、S. G. Krivokolysko、V. P. Litvinov
DOI:10.1007/bf02321397
日期:1997.4
Synthesis and Structure of (2E)-3-Aryl(hetaryl)-2-[5-bromo-4-aryl(hetaryl)-1,3-thiazol-2-yl]acrylonitriles
作者:N. A. Pakholka、V. L. Abramenko、V. V. Dotsenko、N. A. Aksenov、I. V. Aksenova、S. G. Krivokolysko
DOI:10.1134/s1070363221030038
日期:2021.3
Bromination of (2E)-3-aryl(hetaryl)-2-[4-aryl(hetaryl)-1,3-thiazol-2-yl]acrylonitriles proceeds regioselectively at the C5 atom of the thiazolering with the formation of new (2E)-3-aryl(hetaryl)-2-[5-bromo-4-aryl(hetaryl)-1,3-thiazol-2-yl]acrylonitriles. The latter were alternatively obtained by the reaction of aldehydes, cyanothioacetamide, α-bromoketones and bromine in the presence of triethylamine