Formal [3+3] cycloaddition reaction of 4-hydroxythiocoumarin to 4Н-chromene-3-carbaldehydes: synthesis of thiochromeno[3',4':5,6]pyrano[2,3-b]chromen-6-ones

Formal [3+3] cycloaddition reaction of 4-hydroxythiocoumarin to 4Н-chromene-3-carbaldehydes: synthesis of thiochromeno[3',4':5,6]pyrano[2,3-b]chromen-6-ones

A cascade reaction of 4-hydroxythiocoumarin and 4Н-chromene-3-carbaldehydes was developed, consisting of Knoevenagel condensation and oxa-6π electrocyclization in the presence of ammonium acetate as catalyst. A series of polycyclic acetals containing a fused thiocoumarin moiety were obtained

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Xehetasun bibliografikoak
Egile Nagusiak:	Demidov, O. P., Демидов, О. П.
Formatua:	Статья
Hizkuntza:	English
Argitaratua:	Springer 2020
Gaiak:	1H-benzo[f]chromene-2-carbaldehydes 4-hydroxythiocoumarin 4Н-chromene-3-carbaldehydes Electrocyclization Formal [3+3] cycloaddition Knoevenagel condensation
Sarrera elektronikoa:	https://dspace.ncfu.ru/handle/20.500.12258/14619
Etiketak:	Etiketa erantsi Etiketarik gabe, Izan zaitez lehena erregistro honi etiketa jartzen!

Antzeko izenburuak

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Reactions of β-Carbonyl-Substituted 4H-chromenes and 1H-benzo[f]Chromenes with 5-aminopyrazoles
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Investigation in the field of quinazolines. 8*. New reaction of N-alkylation of 4,4-diphenyl-3,4-dihydroquinazolines
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Electrophilically activated nitroalkanes in the synthesis of substituted 1,3,4-oxadiazoles from amino acid derivatives
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A new Approach to the synthesis of functional derivatives of 3-(4-Pyridinyl)-1H-indole and 4-s(1H-Indol-3-yl)thieno[2,3-b]pyridine
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Reaction of 3-Amino-4,6-diarylthieno[2,3-b]pyridine-2-carboxamides with Ninhydrin
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1,6-Diamino-2-oxopyridine-3,5-dicarbonitrile Derivatives in the Mannich Reaction
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Synthesis and properties of new 4-oxo-4,5-dihydro-1,3-oxazolium perchlorates
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Synthesis and In vivo Evaluation of Hepatoprotective Effects of Novel Sulfur-Containing 1,4-Dihydropyridines and 1,2,3,4-Tetrahydropyridines
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Synthesis of 3,4-dihydroisoquinolines using nitroalkanes in polyphosphoric acid
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Pseudo-five-component stereoselective synthesis of highly functionalized 3-azabicyclo[3.3.1]nona-2,7-dienes
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Antistress properties of 2-substituted derivatives of quinazoline-4(3Н)-on
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Novel recyclization of 3,4-dihydroisoquinolines as an efficient route to a new type of heteroarylated derivatives of β-arylethylamines
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Synthesis and Cyclizations of N-(Thieno[2,3-b]pyridin-3-yl)cyanoacetamides
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Synthesis and Aminomethylation of 2-Amino-4-(2-chlorophenyl)-6-(dicyanomethyl)-1,4-dihydropyridine-3,5-dicarbonitrile N-Methylmorpholinium Salt
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New methods of synthesis, structure and aminomethylation of 4-imino-2-(dicyanomethylene)-3-azaspiro[5.5]undecane-1,5-dicarbonitrile
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Anticataleptic activity of 2-substituted derivatives of 3(H)-quinazolin-4-one
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New 6'-Amino-5'-cyano-2-oxo-1,2-dihydro-1'H-spiro[indole-3,4'-pyridine]-3'-carboxamides: Synthesis, Reactions, Molecular Docking Studies and Biological Activity
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Antihypoxant effect of hydroxy- And methoxyphenyl derivatives of quinazolin-4(3H)-one
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Aminomethylation of Guareschi imides: synthesis of 2,4-dioxo-1H,5H-3,7-spiro[diazabicyclo[3.3.1]nonane-9,4'-piperidine]-1,5-dicarbonitriles
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New type of recyclization in 3,4-dihydroisoquinolines in the synthesis of β-(o-indazolylaryl)ethylamines and their 7-azaindazolyl analogues
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2-Amino-4,5-dihydrothiophene-3-carbonitriles: A New Synthesis, Quantum Chemical Studies, and Mannich-Type Reactions Leading to New Hexahydrothieno[2,3-d]pyrimidines
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Electrophilic activation of nitroalkanes in efficient synthesis of 1,3,4-oxadiazoles
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Eco-friendly synthesis of fused pyrano[2,3-b]pyransviaammonium acetate-mediated formal oxa-[3 + 3]cycloaddition of 4H-chromene-3-carbaldehydes and cyclic 1,3-dicarbonyl compounds
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6-Amino-4-aryl-7-phenyl-3-(phenylimino)-4,7-dihydro-3H-[1,2]dithiolo[3,4-b]pyridine-5-carboxamides: Synthesis, Biological Activity, Quantum Chemical Studies and In Silico Docking Studies
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Synthesis of new functionalized 3,7-diazabicyclo[3.3.1]nonanes by aminomethylation of the Guareschi imides
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Reaction of quinaldine with 4,6-di(tert-butyl)-3-nitro-1,2-benzoquinone. Dependence of the outcome on the reaction conditions and a deeper insight into the mechanism
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7-(2-Aryl-1-cyanovinyl)-1,2,3,4-tetrahydropyrazolo[1,5-a][1,3,5]triazine-8-carbonitriles: Synthesis and Biological Activity
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