Synthesis and structural analysis of nine-membered enyne nitrogen heterocycles

Kazunobu Igawa, Takeshi Kawabata, Kazuhiro Uehara, Katsuhiko Tomooka

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1 Citation (Scopus)

Abstract

An efficient approach to the nine-membered enyne nitrogen heterocycle 3 is presented. 1H NMR analysis reveals that both 3a (R = H, X = Ts) and 3b (R = Me, X = Ts) exhibit significant labile planar chirality in solution at ambient temperature. The X-ray analysis of 3b shows that the enantiotopic faces of the alkene are differentiated by the alkyne moiety in the solid state.

Original languageEnglish
Pages (from-to)901-906
Number of pages6
JournalHeterocycles
Volume90
Issue number2
DOIs
Publication statusPublished - 2015

All Science Journal Classification (ASJC) codes

  • Analytical Chemistry
  • Pharmacology
  • Organic Chemistry

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