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Synthesis of the First Example of the 12‐Vertex‐ closo /12‐Vertex‐ nido Biscarborane Cluster by a Metal‐Free B−H Activation at a Phosphorus(III) Center
Author(s) -
Wong Yuen Onn,
Smith Mark D.,
Peryshkov Dmitry V.
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.201601194
Subject(s) - steric effects , chemistry , vertex (graph theory) , carborane , cluster (spacecraft) , regioselectivity , metal , crystallography , stereochemistry , computational chemistry , organic chemistry , combinatorics , catalysis , mathematics , graph , computer science , programming language
An unusual 12‐vertex‐ closo ‐C 2 B 10 /12‐vertex‐ nido ‐C 2 B 10 biscarborane cluster was synthesized through an unprecedented regioselective metal‐free B−H activation by a sterically hindered P III center under mild conditions accompanied by cage‐opening rearrangement. A combination of the electron‐accepting properties of a carborane cage and steric enforcement of close interatomic contacts represent a new synthetic strategy for the activation of strong B−H bonds in carboranes.