SECONDARY 3-AMINOTHIENO[2.3-<i>b</i>]PYRIDINE-2-CARBOXAMIDES IN REACTION WITH <i>ortho</i>-FORMYLBENZOIC ACID
DOI:
https://doi.org/10.1007/2021Keywords:
3-aminothieno[2, 3-b]pyridine-2-carboxamides, ortho-formylbenzoic acid, (±)-1, 2, 3, 4-tetrahydropyrido[3', 2', 4, 5]thieno[3, 2-d]pyrimidin-2-yl)benzoic acids, (±)-7, 7a-dihydropyrido[3'', 2'', 4', 5']thieno[2', 3', 5, 6]pyrimido[2, 1-a]isoindole-6, 12-diones, (±)-12b, 13-dihydropyrido[3'', 5']thieno[3', 5]pyrimido[2, 8-diones, X-ray analysis, intramolecular dynamicsAbstract
By interaction of secondary 3-aminothieno[2,3-b]pyridine-2-carboxamides with ortho-formylbenzoic acid angular (±)-7,7a-dihydropyrido[3",2":4',5']thieno[2',3':5,6] pypimido[2,1-a]isoindole-6,12-diones were obtained. In some cases, intermediate products − (±)-(1,2,3,4-tetrahydropyrido[3',2':4,5]thieno[3,2-d]pyrimidin-2-yl)benzoic acids − were separated from the reaction mixture. It was shown that secondary N-(5-methyl-2-furfuryl)carboxamides yield corresponding linear isoindole-6,8-diones in this reaction. The molecular structure one of the angular isoindole-6,12-diones was investigated by X-ray analysis. Degenerate intramolecular process of rotation in 7-arylisoindile-6,12-diones was studied by dynamic NMR.
How to Cite
Vasilin, V. K.; Lukina, D. Yu.; Stroganova, T. A.; Morozov, P. G.; Krapivin, G. D. Chem. Heterocycl. Compd. 2015, 50, 1756. [Khim. Geterotsikl. Soedin. 2014, 1908.]
For this article in the English edition see DOI 10.1007/s10593-015-1648-y