Backbone-controlled LUMO energy induces intramolecular C–H activation in ortho-bis-9-borafluorene-substituted phenyl and o-carboranyl compounds leading to …

J Krebs, A Häfner, S Fuchs, X Guo, F Rauch… - Chemical …, 2022 - pubs.rsc.org
The choice of backbone linker for two ortho-bis-(9-borafluorene) s has a great influence on
the LUMO located at the boron centers and, therefore, the reactivity of the respective …

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

S Yruegas, JC Axtell, KO Kirlikovali… - Chemical …, 2019 - pubs.rsc.org
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 …

Reversible Boron‐Insertion into Aromatic C− C Bonds

K Kuroki, T Ito, J Takaya - Angewandte Chemie International …, 2023 - Wiley Online Library
Abstract Formation of borabicyclo [3.2. 0] heptadiene derivatives was achieved via boron‐
insertion into aromatic C− C bonds in the photo‐promoted skeletal rearrangement reaction …

Unsymmetrically substituted 9, 10‐Dihydro‐9, 10‐diboraanthracenes as versatile building blocks for boron‐doped π‐conjugated systems

E Januszewski, A Lorbach, R Grewal… - … A European Journal, 2011 - Wiley Online Library
The targeted hydrolysis of the 9, 10‐dihydro‐9, 10‐diboraanthracene adduct (Me2S) HB
(C6H4) 2BH (SMe2)(1) with 0.5 equiv of H2O leads to formation of the borinic acid …

Alkene insertion reactivity of ao-carboranyl-substituted 9-borafluorene

T Bischof, X Guo, I Krummenacher, L Beßler, Z Lin… - Chemical …, 2022 - pubs.rsc.org
The synthesis of 9-borafluorene with an electron-withdrawing o-carboranyl substituent and
its reactions with a series of alkenes are described. The o-carboranyl substituent is bonded …

Construction of a Diverse Range of Boron Heterocycles via Ring Expansion of a Carboranyl‐Substituted 9‐Borafluorene

T Bischof, L Beßler, I Krummenacher… - … A European Journal, 2023 - Wiley Online Library
Direct insertion of unsaturated substrates into a five‐membered borole ring is a useful
method to obtain valuable heterocycles containing one or more three‐coordinate boron …

Functionalization of o-carboranes via carboryne intermediates

Z Qiu, Z Xie - Chemical Society Reviews, 2022 - pubs.rsc.org
Carborynes (1, 2-dehydro-o-carborane and 1, 3-dehydro-o-carborane), three-dimensional
analogues of benzyne, can be generated in situ from the precursors 1-X-2-Li-1, 2 …

A redox-active diborane platform performs C (sp 3)–H activation and nucleophilic substitution reactions

T Kaese, T Trageser, H Budy, M Bolte, HW Lerner… - Chemical …, 2018 - pubs.rsc.org
Organoboranes are among the most versatile and widely used reagents in synthetic
chemistry. A significant further expansion of their application spectrum would be achievable …

Naphthylaminoborane: From structural switches to frustrated Lewis pair reactivity

D Pla, O Sadek, S Cadet, B Mestre-Voegtlé… - Dalton Transactions, 2015 - pubs.rsc.org
A series of naphthyl-bridged amino-borane derivatives, namely 1-(dimethylamino)-8-
naphthylboranes (1, 3, 5, 7) and 5-(dimethylamino)-6-acenaphthylboranes (2, 4, 6, 8, 10 …

Aryl–aryl coupling in a polycyclic aromatic hydrocarbon with embedded tetracoordinate boron centre

S Kirschner, SS Bao, MK Fengel, M Bolte… - Organic & …, 2019 - pubs.rsc.org
The addition of 2 eq. of MesLi to the biphenylene-containing 9, 10-dihydro-9, 10-
diboraanthracene (DBA) 2 results in the formation of the corresponding …