Issue 20, 2019
From the journal:

Chemical Communications

Synthesis of 9-borafluorene analogues featuring a three-dimensional 1,1′-bis(o-carborane) backbone†

Sam Yruegas,a   Jonathan C. Axtell, ORCID logo b   Kent O. Kirlikovali, ORCID logo b   Alexander M. Spokoyny ORCID logo bc  and  Caleb D. Martin ORCID logo *a  

* Corresponding authors

a Department of Chemistry and Biochemistry, Baylor University, One Bear Place #97348, Waco, Texas 76798, USA
E-mail: caleb_d_martin@baylor.edu

b Department of Chemistry and Biochemistry, University of California, Los Angeles, 607 Charles E. Young Drive East, Los Angeles, California 90095, USA
E-mail: spokoyny@chem.ucla.edu

c California NanoSystems Institute (CNSI), University of California, Los Angeles, 570 Westwood Plaza, Los Angeles, California 90095, USA

Abstract

The synthesis of [1,1′-bis(o-carboranyl)]boranes was achieved through the deprotonation of 1,1′-bis(o-carborane) reagents followed by salt metathesis with (iPr)2NBCl2. X-ray crystallography confirms planar central BC4 rings and Gutmann–Beckett studies reveal an increase in Lewis acidity at the boron center in comparison to their biphenyl congener, 9-borafluorene.

Graphical abstract: Synthesis of 9-borafluorene analogues featuring a three-dimensional 1,1′-bis(o-carborane) backbone

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Article information

DOI
https://doi.org/10.1039/C8CC10087J
Article type
Communication
Submitted
20 Dec 2018
Accepted
25 Jan 2019
First published
25 Jan 2019

Chem. Commun., 2019,55, 2892-2895

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Synthesis of 9-borafluorene analogues featuring a three-dimensional 1,1′-bis(o-carborane) backbone

S. Yruegas, J. C. Axtell, K. O. Kirlikovali, A. M. Spokoyny and C. D. Martin, Chem. Commun., 2019, 55, 2892 DOI: 10.1039/C8CC10087J

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