Frontispiece: Synthesis, Structure, and Reactivity of Anionic sp2-sp3 Diboron Compounds: Readily Accessible Boryl Nucleophiles

Diboron Compounds In their Full Paper on page 7082 ff., T. Marder et al. report the isolation and detailed structural characterization of a series of anionic adducts of B2pin2 (bis(pinacolato)diborane) with hard Lewis bases such as alkoxides and fluoride. Such sp2–sp3 adducts have been implicated as...

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Bibliographic Details
Published in:Chemistry : a European journal 2015-05, Vol.21 (19), p.n/a
Main Authors: Pietsch, Sabrina, Neeve, Emily C., Apperley, David C., Bertermann, Rüdiger, Mo, Fanyang, Qiu, Di, Cheung, Man Sing, Dang, Li, Wang, Jianbo, Radius, Udo, Lin, Zhenyang, Kleeberg , Christian, Marder , Todd B.
Format: Article
Language:English
Subjects:
boron
boronic acids
Chemistry
cross-coupling
Lewis bases
metal-free borylation
Online Access:Get full text
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Summary:Diboron Compounds In their Full Paper on page 7082 ff., T. Marder et al. report the isolation and detailed structural characterization of a series of anionic adducts of B2pin2 (bis(pinacolato)diborane) with hard Lewis bases such as alkoxides and fluoride. Such sp2–sp3 adducts have been implicated as intermediates in both metal‐catalyzed and metal‐free borylations. The ability of the isolated adducts to transfer a nucleophilic boryl anion directly to electrophilic aromatic substrates in the absence of a transition metal was demonstrated in several stoichiometric reactions with aryl halides and diazonium salts.
ISSN:0947-6539
1521-3765
DOI:10.1002/chem.201581962