Back to Search Start Over

Unexpected formation of 5-alkylidene derivatives of hydantoin from the Michael addition of 4-phenylurazole to fumaric esters

Unexpected formation of 5-alkylidene derivatives of hydantoin from the Michael addition of 4-phenylurazole to fumaric esters

Authors :
Nader Noroozi-Pesyan
Gholamhassan Imanzadeh
Hemayat Hooshmand
Ertan Şahin
Zahra Soltanzadeh
Source :
Tetrahedron. 72:1736-1741
Publication Year :
2016
Publisher :
Elsevier BV, 2016.

Abstract

An unexpected reaction between 4-phenylurazole and fumaric esters which led to the formation of 5-alkylidene derivatives of hydantoin is described in this paper. The reaction takes place in the presence of tetrabutylammonium bromide (TBAB), and 1,4-diaza-bicyclo[2,2,2]octane (DABCO) at 70 °C under solvent-free conditions.

Details

ISSN :
00404020
Volume :
72
Database :
OpenAIRE
Journal :
Tetrahedron
Accession number :
edsair.doi...........85871590cbc1746fbfdba24ffb5ce723
Full Text :
https://doi.org/10.1016/j.tet.2016.02.024