Functional rearrangement of polychlorinated pyrrolidin-2-ones to 5-imino-lactams promoted by n-propylamine

C Danieli, F Ghelfi, A Mucci, U M Pagnoni, A F Parsons, M Pattarozzi, L Schenetti

Research output: Contribution to journalArticlepeer-review

Abstract

The reaction of 4-methyl-pyrrolidin-2-ones, chlorinated at the C(3) and C(6) positions, with n-propylamine constitutes a new method for the preparation of 5-propylimino-pyrrolidin-2-ones or 3-pyrrolin-2-ones in generally good yields. The transformation involves a series of eliminations, substitutions and double bond shifts. This constitutes a remarkable example of a functional rearrangement. (C) 2004 Elsevier Ltd. All rights reserved.

Original languageEnglish
Pages (from-to)11493-11501
Number of pages9
JournalTetrahedron
Volume60
Issue number50
DOIs
Publication statusPublished - 6 Dec 2004

Keywords

  • TRANSFER RADICAL CYCLIZATION
  • PHOSPHORUS PENTACHLORIDE
  • 2-IMINO 5-PYRROLIDONES
  • PYRROLIDONES SERIES
  • CUCL-TMEDA
  • SUCCINIMIDES
  • N-ALLYL-N-BENZYL-2,2-DIHALOAMIDES
  • DERIVATIVES
  • LACTAMS
  • ACIDS

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