Please use this identifier to cite or link to this item: http://hdl.handle.net/20.500.12779/5472
Title: Simple construction of fused and spiro nitrogen/sulfur containing heterocycles by addition of thioamides or thioureas on cycloalkenyl-diazenes: examples of click chemistry
Authors: ORAZIO A., Attanasi
LUCIA DE, Crescentini
Gianfranco, Favi
Paolino, Filippone
Giorgi, Gianluca 
Fabio, Mantellini
FRANCESCA R., Perrulli
Domenico, Spinelli
Issue Date: 2008
Project: None 
Journal: TETRAHEDRON
Abstract: 
New 1-cycloalkenyl-1-diazenes have been obtained in good yields from cyclic β-ketoesters and hydrazine derivatives. They furnished new cycloalkyl[d][1,3]thiazolines with thioamides or new spirocycloalkyl-thiazolinones with thioureas. Moreover they gave, with imidazolidine-2-thione and tetrahydropyrimidine-2-thione, new and interesting spiro[cycloalkyl-1,2′-imidazo[2,1-b][1,3]thiazole] or spiro[cycloalkyl-1,2′-[1,3]thiazolo[3,2-a]pyrimidine] derivatives, respectively. Cycloalkyl[d][1,3]thiazolines were useful for the further preparation of unknown thia-triaza-tricyclo derivatives. Novel hexahydro-1,3-benzothiazoles have been achieved by reaction of N,N′-dialkylthioureas on N-1-phenyl-2-(1-cyclohexenyl)-1-diazene-1-carboxyamide. The acidic hydrolysis of spirocycloalkyl-thiazolinones produced 2-imino-5-(ω-carboxyalkyl)-4-thiazolidinones.
Description: 
23406
URI: http://hdl.handle.net/20.500.12779/5472
ISSN: 0040-4020
DOI: 10.1016/j.tet.2008.01.102
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