Remarkable metal template effects on selective syntheses of p-t-butylcalix[4]arene conformers

Koji Iwamoto, Kiyoshi Fujimoto, Tsutomu Matsuda, Seiji Shinkai

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61 Citations (Scopus)

Abstract

It was found that the conformer distribution in tetra-O-substitution of p-t-butylcalix[4]arene is remarkably affected by metal species in base: in particular, 100% "cone" selectivity in the presence of Na2CO3 is changed to 100% "partial cone" selectivity in the presence of Cs2CO3 in the reaction With ethyl bromoacetate.

Original languageEnglish
Pages (from-to)7169-7172
Number of pages4
JournalTetrahedron Letters
Volume31
Issue number49
DOIs
Publication statusPublished - 1990

All Science Journal Classification (ASJC) codes

  • Biochemistry
  • Drug Discovery
  • Organic Chemistry

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