"Syntheses and Structure Study on 3,3alambda4,4-Trithia-1-azapentalenes and Their 3-Oxa Analogues" . "7" . "Syntheses and Structure Study on 3,3alambda4,4-Trithia-1-azapentalenes and Their 3-Oxa Analogues" . "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 3,3a\u00EB4,4-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."@cs . . "68" . "Syntheses and Structure Study on 3,3alambda4,4-Trithia-1-azapentalenes and Their 3-Oxa Analogues"@en . . "Syntheses and Structure Study on 3,3alambda4,4-Trithia-1-azapentalenes and Their 3-Oxa Analogues"@en . "Syntheses and Structure Study on 3,3alambda4,4-Trithia-1-azapentalenes and Their 3-Oxa Analogues"@cs . . "0010-0765" . . . . . "\u010Cmel\u00EDk, Richard" . . . "Pazdera, Pavel" . . . . . "Syntheses and Structure Study on 3,3alambda4,4-Trithia-1-azapentalenes and Their 3-Oxa Analogues"@cs . . . "[B34E0A7529F9]" . "Collection of Czechoslovak Chemical Communications" . . . "\u010Cajan, Michal" . . "P(GA203/01/1333), Z(MSM 143100011)" . . . . . "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 3,3a\u00EB4,4-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." . "14310" . "4"^^ . "629996" . . "1243-1263" . "CZ - \u010Cesk\u00E1 republika" . "RIV/00216224:14310/03:00008152!RIV08-MSM-14310___" . "4"^^ . "Acylations; Alkylations; DFT calculation; Sulfur heterocycles; Trithiapenatlenes; X-Ray diffraction; Disulfides; Cyclizations"@en . "11"^^ . "Marek, Jarom\u00EDr" . "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 3,3a\u00EB4,4-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."@en . "RIV/00216224:14310/03:00008152" . . .