Syntheses and Structure Study on 3,3alambda4,4-Trithia-1-azapentalenes and Their 3-Oxa Analogues

• Autoři: ČMELÍK Richard; CAJAN Michal; MAREK Jaromír; PAZDERA Pavel
• Rok publikování: 2003
• Druh: Článek v odborném periodiku
• Časopis / Zdroj: Collection of Czechoslovak Chemical Communications
• Fakulta / Pracoviště MU: Přírodovědecká fakulta
• Obor: Organická chemie
• Klíčová slova: Acylations; Alkylations; DFT calculation; Sulfur heterocycles; Trithiapenatlenes; X-Ray diffraction; Disulfides; Cyclizations
• Popis: The reaction of 5-amino-3-thioxo-3H-1,2-dithiole-4-carboxylic acid functional derivatives (nitrile, amide, ethyl ester) 1 with alkylation and acylation agents were studied. Ionic 1,2-dithiole-3-ylidene amides 6 were formed in several pathways. Treatment with phosphorus pentasulfide afforded the corresponding 3,3aë4,4-trithia-1-azapentalenes 8. The results from structure study on synthesized heterocycles were described. The combination of X-ray structure analysis, IR spectroscopy, HF and DFT quantum-chemical calculation were involved.

Související projekty

• Chalkogenorganické sloučeniny - příprava, transformace a strukturní studie
• Struktura a vazebné poměry, vlastnosti a analýza syntetických a přírodních molekulových ansamblů