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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
- 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