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Titolo:
A NEW AND EFFICIENT SYNTHESIS OF PYRIDAZIN-3(2H)-ONES VIA 1,3-DIPOLARCYCLOADDITION
Autore:
MSADDEK M; RAMMAH M; CIAMALA K; VEBREL J; LAUDE B;
Indirizzi:
FAC SCI & TECH,LAB CHIM & ELECTROCHIM MOL,16 ROUTE DE GRAY F-25030 BESANCON FRANCE FAC SCI & TECH,LAB CHIM & ELECTROCHIM MOL F-25030 BESANCON FRANCE UNIV CTR,FAC SCI & TECH,DEPT CHIM MONASTIR TUNISIA
Titolo Testata:
Synthesis
fascicolo: 12, , anno: 1997,
pagine: 1495 - 1498
SICI:
0039-7881(1997):12<1495:ANAESO>2.0.ZU;2-E
Fonte:
ISI
Lingua:
ENG
Soggetto:
CYCLO-ADDITIONS; 3(2H)-PYRIDAZINONES; REGIOCHEMISTRY; AGENTS;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
20
Recensione:
Indirizzi per estratti:
Citazione:
M. Msaddek et al., "A NEW AND EFFICIENT SYNTHESIS OF PYRIDAZIN-3(2H)-ONES VIA 1,3-DIPOLARCYCLOADDITION", Synthesis, (12), 1997, pp. 1495-1498

Abstract

3-Arylidenebenzofuran-2(3H)-ones are obtained by condensation of aldehydes (ArCHO)-C-1 with benzofuran-2(3H)-one. A mixture of stereoisomers (Z) and (E) was isolated. The reaction of diarylnitrilimines with the Z + E mixture or with each stereoisomer leads regio- and stereoselectively to cycloadducts which give, after acidic treatment, the same 5,6-diaryl-4-(o-hydroxyphenyl)pyridazin-3(2H)-one 6, irrespective of thedouble bond geometry of the starting olefin.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 18/09/20 alle ore 10:53:56