One-Pot Synthesis of Thieno[2,3-b]pyridine and Pyrido[3′,2′:4,5]thieno[3,2-d]pyrimidine Derivatives
作者:I. V. Dyachenko、V. D. Dyachenko、P. V. Dorovatovsky、V. N. Khrustalev、V. G. Nenajdenko
DOI:10.1134/s1070428020060020
日期:2020.6
2,3-b]pyridines, 8′-ethyl-7′,9′-dimethyl-1′H-spiro[cyclohexane-1,2′-pyrido[3′,2′:4,5]thieno[3,2-d]pyrimidin]-4′(3′H)-one, and 7,8,9-trimethylpyrido[3′,2′:4,5]thieno[3,2-d]pyrimidin-4-amine have been synthesized by one-pot three-component condensation of 3-methyl(ethyl)pentane-2,4-diones with cyanothioacetamide and α-halocarbonyl compounds, cyclohexanone, or formamide. The structures of some of the
摘要2-酰基-4,5,6-三烷基-3-氨基噻吩并[2,3- b ]吡啶,8'-乙基-7-',9'-二甲基-1' ħ -螺[环己烷- 1,2' -吡啶并[3',2':4,5]噻吩并[3,2- d ]嘧啶] -4'(3' ħ) -酮,和7,8,9- trimethylpyrido [3',2':4, 5] thieno [3,2 - d ]嘧啶-4-胺是由3-甲基(乙基)戊烷-2,4-二酮与氰基硫代乙酰胺和α-卤代羰基化合物,环己酮的一锅三组分缩合反应合成的,或甲酰胺。通过X射线分析研究了一些合成的噻吩并[2,3- b ]吡啶衍生物的结构。