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Synthesis and Structure of the Potassium Salts of 1,3,2‐Diazaboroles
Author(s) -
Schmid Günter,
Lehr Jürgen,
Polk Michael,
Boese Roland
Publication year - 1991
Publication title -
angewandte chemie international edition in english
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 0570-0833
DOI - 10.1002/anie.199110151
Subject(s) - potassium , chemistry , metalation , ring (chemistry) , crystal structure , ion , sodium , medicinal chemistry , inorganic chemistry , crystallography , stereochemistry , organic chemistry
A rich coordination chemistry is promised by the potassium salts 2 obtained by metalation of the N ‐silylated 1,3,2‐diazaboroles 1 . The structure of one of these salts is remarkable. In the crystal, compound 2 with R = C(CH 3 ) 3 contains ring‐shaped units consisting of 12 diazaborolyl, 18 tert ‐butoxide, and 6 dimethylsilanediolate anions. For charge balance, 42 (!) potassium ions are enclosed in each of these rings.