Premium
“Umpolung” at Boron by Reduction of [B(CN) 4 ] − and Formation of the Dianion [B(CN) 3 ] 2−
Author(s) -
Bernhardt Eduard,
BernhardtPitchougina Vera,
Willner Helge,
Ignatiev Nikolai
Publication year - 2011
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.201105848
Subject(s) - boron , chemistry , crystallography , umpolung , homoleptic , nucleophile , oxidation state , nuclear magnetic resonance spectroscopy , single crystal , medicinal chemistry , stereochemistry , organic chemistry , catalysis , metal
A homoleptic cyanoborate with nucleophilic boron atom : An unprecedented dianion in the salts M 2 [B(CN) 3 ] (M=Li, Na, K) with nucleophilic boron in the formal oxidation state +1 was obtained by reductive BC bond cleavage in the [B(CN) 4 ] − anion and characterized by NMR ( 11 B, 13 C), vibrational spectroscopy and single crystal X‐ray diffraction.