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Activated nitriles in heterocyclic synthesis: Synthesis of 6-thiophen-2-yl and 6-furan-2-ylthiazolo[2,3—a]pyridine derivatives (1986)

Osman, Soad Abdel Meguid ; Elgemeie, Galal Eldin Hamza ; Nawar, Galal Abdel Moein ; [et al.]

Springer

Monatshefte für Chemie 117 (1986), S. 105-110

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ISSN: 1434-4475

Keywords: Michael addition ; Methyl-2-thiazolin-4-one, 2-functionally substituted ; Ylidenethiazolo[2,3-a]pyridine

Source: Springer Online Journal Archives 1860-2000

Topics: Chemistry and Pharmacology

Description / Table of Contents: Zusammenfassung Es konnte eine Reihe neuer 6-Thiophen-2-yl- und 6-Furan-2-yl-thiazolo-[2,3—a]pyridine über die Reaktion von 2-funktionell-substituierten Methyl-2-thiazolin-4-onen mit Cyanomethylenthiphen-2-yl bzw. Cyanomethylenfuran-2-yl-Derivaten hergestellt werden. Die Struktur der Reaktionsprodukte wurde mit spektroskopischen Methoden ermittelt.

Notes: Abstract A variety of new 6-thiophen-2-yl and 6-furan-2-ylthiazolo[2,3—a]pyridine derivatives could be prepared via the reaction of 2-functionally substituted methyl-2-thiazolin-4-one with cyanomethylenethiophen-2-yl and cyanomethylenefuran-2-yl derivatives. The structure of the reaction products was established based on spectral data.

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1007/BF00809177

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Nitriles in organic synthesis: The reaction of trichloroacetonitrile with active methylene reagents (1985)

Ibrahim, Nadia Sobhy ; Abdelrazek, Fathy Mohamed ; Aziz, Suzan Ibrahim ; [et al.]

Springer

Monatshefte für Chemie 116 (1985), S. 551-556

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ISSN: 1434-4475

Keywords: Polysubstituted phenols ; Pyrazoles ; Pyrroles

Source: Springer Online Journal Archives 1860-2000

Topics: Chemistry and Pharmacology

Description / Table of Contents: Zusammenfassung Es wird über die Reaktionen von Trichloracetonitril mit aktiven Methylen-Reagentien wie Acetylaceton, Benzoylaceton, Cyanacetamid und Cyanacethydrazid berichtet. Ein neuer einfacher Weg für die Synthese polysubstituierter Phenole, Pyrazole und Pyrrole wird beschrieben.

Notes: Abstract The reaction of trichloroacetonitrile with active methylene reagents such as acetylacetone, benzoylacetone, cyanoacetamide and cyanoacethydrazide is reported. A new simple route for the synthesis of polysubstituted phenols, pyrazoles and pyrroles is also described.

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1007/BF00798375

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Activated nitriles in heterocyclic synthesis: Synthesis of several new coumarin derivatives (1982)

Abdou, Sadek ; Fahmy, Sherif Mahmoud ; Khader, Mahmoud M. ; [et al.]

Springer

Monatshefte für Chemie 113 (1982), S. 985-991

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ISSN: 1434-4475

Keywords: Benzopyrano[2,3-c]pyridines ; Enamino nitriles ; Iminocoumarins

Source: Springer Online Journal Archives 1860-2000

Topics: Chemistry and Pharmacology

Description / Table of Contents: Zusammenfassung Einige neue Benzopyran- und Benzopyranopyridin-derivate wurden durch Kondensation von 2-Amino-1,1,3-tricyanopropen (1) und 2-Amino-1-cyanopropen-1,3-dicarbonsäuredimethylester (2) mit Salicylaldehyd und Behandlung der Reaktionsprodukte mit aktiven Methylenreagenzien dargestellt. Die spektroskopischen Daten der neuen Verbindungen werden diskutiert.

Notes: Abstract Several new benzopyran and benzopyranopyridine derivatives were synthesized via condensation of 2-amino-1,1,3-tricyanopropene (1) and diethyl 2-amino-1-cyanopropene-1,3-dicarboxylate (2) with salicylaldehyde and treatment of the resulted products with active methylene regents. The spectroscopic data of the synthesized compounds are reported and discussed.

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1007/BF00799239

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Notizen / Notes Polyazanaphthalenes, I The Reaction of Ethyl 6-Amino-5-cyano-4-aryl-2-methyl-4H-pyran-3-carboxylate with Nucleophilic Reagents (1989)

Harb, Abdel-Fattah A. ; Hesien, Abdel-Haleem M. ; Metwally, Saoud A. ; [et al.]

Weinheim : Wiley-Blackwell

Liebigs Annalen 1989 (1989), S. 585-588

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ISSN: 0170-2041

Keywords: Pyrano[2,3-c]pyrazoles ; Pyrano[2,3-b]pyridines ; Pyrano[2,3-d]pyrimidine ; 1,8-Diazanaphthalenes ; Chemistry ; Organic Chemistry

Source: Wiley InterScience Backfile Collection 1832-2000

Topics: Chemistry and Pharmacology

Notes: Ethyl 6-amino-5-cyano-4-aryl-2-methyl-4H-pyran-3-carboxylates 4 could be converted into 1,6-diazanaphthalene, pyrano-[2,3-c]pyrazole, isoxazolo[3,4-b]pyridine, pyrano[2,3-b]pyridine, 1,8-diazanaphthalene, and pyrano[2,3-d]pyridine derivatives on treatment with malononitrile, hydrazine hydrate, hydroxylamine hydrochloride, (arylmethylene)malononitrile, cyanoacetamide, and acetic anhydride, respectively.

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1002/jlac.1989198901102

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