Issue 17, 2022

Kinetic stabilization allows structural analysis of a benzoborirene

Abstract

Formal reduction of (2-bromophenyl)chloro(2,2′′,4,4′′,6,6′′-hexaisopropyl-[1,1′:3′,1′′-terphenyl]-2′-yl)borane with tert-butyl lithium at low temperatures yields a highly strained benzoborirene that is kinetically stabilized by the bulky terphenyl substituent. The target compound withstands heating to 80 °C, and represents the first benzoborirene fully characterized by single-crystal X-ray crystallography. The bond length pattern of the six-membered ring of the parent benzoborirene follows an anti-Mills–Nixon distortion.

Graphical abstract: Kinetic stabilization allows structural analysis of a benzoborirene

Supplementary files

Article information

Article type
Communication
Submitted
23 noy 2021
Accepted
07 yan 2022
First published
20 yan 2022

Chem. Commun., 2022,58, 2818-2821

Kinetic stabilization allows structural analysis of a benzoborirene

M. Sindlinger, M. Ströbele, C. Maichle-Mössmer and H. F. Bettinger, Chem. Commun., 2022, 58, 2818 DOI: 10.1039/D1CC06588B

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