Issue 1, 2016

Tridentate Lewis acids with phenyl substituted 1,3,5-trisilacyclohexane backbones

Abstract

The 1,3,5-trisilacyclohexane skeleton [CH2Si(Ph)(C2H)]3 equipped with three ethynyl groups was synthesised and functionalised to afford tridentate Lewis acids with directed functions. Hydroboration with HB(C6F5)2 yielded the ethenylborane {CH2Si(Ph)[C2H2B(C6F5)2]}3, while metalation with gallium organyls afforded {CH2Si(Ph)[C2Ga(R)2]}3 (R = Me, Et). The new compounds were identified by elemental analyses, multi-nuclear NMR spectroscopy and IR spectroscopy. Crystal structures were obtained for all-cis-[CH2Si(Ph)(OMe)]3, cistrans-[CH2Si(Ph)(Cl)]3, all-cis-[CH2Si(Ph)(H)]3 and all-cis-[CH2Si(Ph)(C2H)]3.

Graphical abstract: Tridentate Lewis acids with phenyl substituted 1,3,5-trisilacyclohexane backbones

Supplementary files

Article information

Article type
Paper
Submitted
26 Oct 2015
Accepted
13 Nov 2015
First published
17 Nov 2015

Dalton Trans., 2016,45, 198-207

Author version available

Tridentate Lewis acids with phenyl substituted 1,3,5-trisilacyclohexane backbones

E. Weisheim, L. Bücker, B. Neumann, H. Stammler and N. W. Mitzel, Dalton Trans., 2016, 45, 198 DOI: 10.1039/C5DT04208A

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