1H NMR investigation of si-alkylsubstituted 1,3,5-trisilacyclohexanes

Ingvar Arnason*, Agust Kvaran

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

10 Citations (Scopus)

Abstract

Alkylsubstituted derivatives of 1,3,5-trisilacyclohexane have been prepared and their 1H NMR spectra recorded and analyzed. For the compound series 1-mono-, cis-1,3-di-and cis-cis-1,3,5-tri-alkylated derivatives (alkyl = Me, Et, i-Pr and t-Bu) it is found that the conformational preference for an equatorial position of the substituents in the chair form is considerably less than for cyclohexane derivatives. In the compound series trans-1,3-di-and cis-trans-1,3,5-tri-alkylated derivatives the t-butyl group is found to behave uniqually by forcing the ring to escape into the twist-boat form. Each kind of substituent is found to have a characteristic effect on the chemical shift values of the ring protons.

Original languageEnglish
Pages (from-to)65-73
Number of pages9
JournalZeitschrift fur Anorganische und Allgemeine Chemie
Volume624
Issue number1
DOIs
Publication statusPublished - 1998

Other keywords

  • H chemical shifts
  • H NMR
  • Conformational investigations
  • Coupling constants
  • Si-alkylated 1,3,5-trisilacyclohexanes

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