Synthesis and structure of highly polarised double-bond compounds derived from S-proline

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Abstract

Reaction of the chiral iminium salt 3 with stabilised carbanions gives the compounds 4-9 containing a highly polarised double bond. The extent of this polarisation is determined by variable temperature H-1 NMR studies, comparison of C-13 NMR chemical shifts and an X-ray structure determination. (C) 2000 Elsevier Science Ltd. All rights reserved.

Original languageEnglish
Pages (from-to)7965-7968
Number of pages4
JournalTetrahedron Letters
Volume41
Publication statusPublished - 7 Oct 2000

Keywords

  • iminium salts
  • enamino esters
  • thiazolidines
  • X-ray crystal structures
  • ETHYLENES

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