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Desymmetrizing Electron‐Deficient Diboranes(4): Diverse Products and Their Reactivity
Author(s) -
Arnold Nicole,
Braunschweig Holger,
Dewhurst Rian D.,
Hupp Florian,
Radacki Krzysztof,
Trumpp Alexandra
Publication year - 2016
Publication title -
chemistry – a european journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.687
H-Index - 242
eISSN - 1521-3765
pISSN - 0947-6539
DOI - 10.1002/chem.201602805
Subject(s) - reactivity (psychology) , adduct , chemistry , carbene , dication , intramolecular force , halide , medicinal chemistry , stereochemistry , photochemistry , organic chemistry , catalysis , ion , medicine , alternative medicine , pathology
A comprehensive study of the reactivity of Lewis bases with dihalodiboranes(4) is presented. Diaryldihalodiboranes provide rearranged monoadducts when treated with cyclic (alkyl)(amino)carbenes, but halide‐bridged adducts when treated with a range of pyridyl bases. Alternatively, the combination of diaminodihalodiboranes with strong carbene donors leads to boraborenium salts. The reduction and halide‐abstraction reactivity of these adducts was also explored, leading to intramolecular C−H activation and the first 1,2‐bis(borenium) dication.