Please use this identifier to cite or link to this item: http://hdl.handle.net/10316/5185
Title: Cycloaddition reactions of 3-aryl-5-phenyl-5H,7H-thiazolo[3,4-c]oxazol-4-ium-1-olates
Authors: Melo, Teresa M. V. D. Pinho e 
Gomes, Clara S. B. 
Gonsalves, António M. d'A. Rocha 
Paixão, José A. 
Beja, Ana M. 
Silva, Manuela Ramos 
Veiga, Luiz Alte da 
Keywords: dipolar cycloaddition; münchnones; 1H,3H-pyrrolo[1,2-c]thiazoles
Issue Date: 2002
Keywords: dipolar cycloaddition; münchnones; 1H,3H-pyrrolo[1,2-c]thiazoles
Issue Date: 2002
Citation: Tetrahedron. 58:25 (2002) 5093-5102
Abstract: Intermolecular 1,3-dipolar cycloaddition of (5R)- and (5S)-3,5-diphenyl-5H,7H-thiazolo[3,4-c]oxazol-4-ium-1-olates, (5R)- and (5S)-3-(p-methoxyphenyl)-5-phenyl-5H,7H-thiazolo-[3,4-c]oxazol-4-ium-1-olates with a range of dipolarophiles is described. New chiral 5-aryl-3-phenyl-1H,3H-pyrrolo[1,2-c]thiazoles with R and S configuration were obtained. The structure of methyl (3R)-3-phenyl-5-(p-methoxyphenyl)-1H,3H-pyrrolo[1,2-c]thiazole-6-carboxylate was determined by X-ray crystallography. The synthesis of 7,7a-dihydro-1H,3H-pyrrolo[1,2-c]thiazole-6,7-dicarboxylates was also achieved.
URI: http://hdl.handle.net/10316/5185
Rights: openAccess
Appears in Collections:FCTUC Química - Artigos em Revistas Internacionais

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