The cycloaddition reactions of "all-carbon" 1,3-diazabuta-1,3-dienes with a few conjugated and unconjugated alkynyl ketenes are described. The reactions provide some interesting azetidinones and dihydropyrimidinones bearing an alkynyl moiety. The regiochemistry of cycloadduct is related with the degree of conjugation of the alkynyl ketene. Moreover, two alternative approaches to "all-carbon" 1,3-diazabuta-1,3-dienes are reported.

Cycloaddition reactions of 1,3-diazabuta-1,3-dienes with alkynyl ketenes / G. Abbiati, A. Contini, D. Nava, E. Rossi. - In: TETRAHEDRON. - ISSN 0040-4020. - 65:24(2009), pp. 4664-4670.

Cycloaddition reactions of 1,3-diazabuta-1,3-dienes with alkynyl ketenes

G. Abbiati
Primo
;
A. Contini
Secondo
;
D. Nava
Penultimo
;
E. Rossi
Ultimo
2009

Abstract

The cycloaddition reactions of "all-carbon" 1,3-diazabuta-1,3-dienes with a few conjugated and unconjugated alkynyl ketenes are described. The reactions provide some interesting azetidinones and dihydropyrimidinones bearing an alkynyl moiety. The regiochemistry of cycloadduct is related with the degree of conjugation of the alkynyl ketene. Moreover, two alternative approaches to "all-carbon" 1,3-diazabuta-1,3-dienes are reported.
1,3-Diazabuta-1,3-dienes; [2+2] Cycloaddition; [4+2] Cycloaddition; Alkynyl ketenes; Azetidin-2-ones; Dihydropyrimidinones
Settore CHIM/06 - Chimica Organica
2009
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2434/146395
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