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Lithium 2,2′‐Biphenyldiyltrimethylsilicate; First Observation of Pentaorganosilicates
Author(s) -
de Keijzer Adrianus H. J. F.,
de Kanter Franciscus J. J.,
Schakel Marius,
Schmitz Robert F.,
Klumpp Gerhard W.
Publication year - 1996
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.199611271
Subject(s) - lithium (medication) , organolithium compounds , nuclear magnetic resonance spectroscopy , chemistry , spectroscopy , isotopes of lithium , stereochemistry , organic chemistry , physics , ion , ion exchange , medicine , quantum mechanics , deprotonation
Postulated previously only as intermediates , lithium pentaorganosilicates of type 2 ‐L 4 (L = THF, hexamethylphosphoric triamide), which are in equilibrium with silafluorene 1 and the corresponding organolithium, have now been detected at low temperatures by NMR spectroscopy.