1,3-DIPOLAR CYCLOADDITIONS OF 4,5-DIHYDROIMIDAZOLIUM YLIDES - NEW PROTOCOLS FOR THE SYNTHESIS OF PYRROLIDINES AND PYRROLO[1,2-A]PYRAZINES

Authors
JONES RCF HOWARD KJ
Citation
Rcf. Jones et Kj. Howard, 1,3-DIPOLAR CYCLOADDITIONS OF 4,5-DIHYDROIMIDAZOLIUM YLIDES - NEW PROTOCOLS FOR THE SYNTHESIS OF PYRROLIDINES AND PYRROLO[1,2-A]PYRAZINES, Journal of the Chemical Society. Perkin transactions. I, (20), 1993, pp. 2391-2393
Citations number
5
Categorie Soggetti
Chemistry Inorganic & Nuclear
Journal title
Journal of the Chemical Society. Perkin transactions. I → ACNP
ISSN journal
0300922X
Issue
20
Year of publication
1993
Pages
2391 - 2393
Database
ISI
SICI code
0300-922X(1993):20<2391:1CO4Y->2.0.ZU;2-J
Abstract
1,3-Dipolar cycloadditions of 4,5-dihydroimidazolium ylides formed fro m 1-benzyl-4,5-dihydroimidazole proceed via a convenient one-step, one -pot protocol to give hexahydropyrrolo[1,2-a]imidazole esters, reducti on of which leads to either hexahydropyrrolo[1,2-a]pyrazines or N-subs tituted pyrrolidines depending on the nature of the ester.