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Construction of Linear and Branched Tetraboranes by 1,1‐ and 1,2‐Diboration of Diborenes
Author(s) -
Stennett Tom E.,
Bertermann Rüdiger,
Braunschweig Holger
Publication year - 2018
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.201809976
Subject(s) - borane , adduct , yield (engineering) , steric effects , chemistry , phosphine , derivative (finance) , chelation , medicinal chemistry , catalysis , stereochemistry , organic chemistry , materials science , metallurgy , economics , financial economics
Sterically unencumbered diborenes based on a benzylphosphine chelate undergo diboration reactions with bis(catecholato)diboron in the absence of a catalyst to yield tetraboranes. The symmetrical diborenes studied undergo 1,2‐diborations, whereas an unsymmetrical derivative was found to yield a triborylborane–phosphine adduct as the result of a formal 1,1‐diboration. A related borylborylene compound also underwent a 1,2‐diboration to produce a borylene–borane adduct.