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Etify A. Bakhite Abdu E. Abdel-Rahman Omima. S. Mohamed Eman A. Thabet 《Phosphorus, sulfur, and silicon and the related elements》2013,188(10):1983-2006
(4-Aryl-3-cyano-6-(2-thienyl)pyridin-2-ylthio)acethydrazides (5a–c), 3-amino-4-aryl-6-(2-thienyl)thieno[2,3-b]pyridine-2-carbohydrazides (6a–c) and 3-amino-4-phenyl-6-(2-thienyl)thieno[2,3-b]pyridine-2-carboxylic acid (30) were prepared and employed as key intermediates in the synthesis of the title compounds. 相似文献
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Vladimir Yarovenko Igor Shedishev Aleksandr Dudnik Igor Zavarin Michail Kraushkin 《Phosphorus, sulfur, and silicon and the related elements》2013,188(7):1558-1570
The reaction of aminothiophenes (1) with Appel's salt (2) affords 2-(1,2,3-dithiazol-5-ylidene)aminothiophenes (3). Under the action of ZnCl2, the latter compounds are transformed into 1,3-oxazin-4-one systems (4). The reactions of compounds 4 with dienophiles under atmospheric or high pressure give thienopyridines (6–11); the reactions with amines produce pyrimidinones (12) and guanidines (14–15). 相似文献
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A. M. Kamal El-Dean A. A. Geies Y. A. El-Ossaily 《Phosphorus, sulfur, and silicon and the related elements》2013,188(9):2013-2022
2-acetyl-3-amino-4,6-dimethylthieno[2,3-b]pyridine 1 reacted with dimethoxy-tetrahydrofuran in acetic acid and ethyl cyanoacetate in the presence of ammonium acetate or with NaNO2 in the presence of an AcOH/HCl mixture to produce 2–4. Compound 2 reacted with aromatic aldehydes, semicarbazide hydrochloride, thiosemicarbazide, and phenyl hydrazine or with hydrazine hydrate to give compounds 5a–c and 11a–d, respectively. Chalcone 5 reacted with hydrazines, hydroxylamine hydrochloride, or thiourea to produce compounds 6–9. Thiosemicarbazone 11b reacted with α -haloester to produce the corresponding thiazolidinone derivatives 12a, b ; also it reacted with ω -bromoacetophenone to give thiazoline derivatives 13a, b . 相似文献
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L. G. Voskressensky T. N. Borisova A. V. Listratova E. A. Sorokina S. V. Tolkunov A. V. Varlamov 《Russian Chemical Bulletin》2007,56(5):1041-1048
The transformations of tetrahydrothieno[3,2-c]-and tetrahydrobenzothieno[2,3-c]pyridines in the reactions with acetylenedicarboxylic ester, alkyl propiolates, and acetylacetylene in alcohols were studied.
Tetrahydrobenzothieno[3,2-d]azocines and 2-methoxyethyl-3-vinyl-aminoethylbenzothiophenes were synthesized.
Published in Russian in Izvestiya Akademii Nauk. Seriya Khimicheskaya, No. 5, pp. 1003–1009, May, 2007. 相似文献
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The current state and prospects of development of the chemistry of isomeric thienopyridines (synthesis, chemical transformations,
and biological activities) are analyzed. Particular attention is given to studies published in the last 10–15 years.
Dedicated to Academician V. I. Minkin on the occasion of his 70th birthday.
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Published in Russian in Izvestiya Akademii Nauk. Seriya Khimicheskaya, No. 4, pp. 847–885, April, 2005. 相似文献
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