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Beiträge zur Chemie des Bors, 200. Zur Kenntnis B‐funktionaler Diboryl‐silyl‐ und Boryl‐silyl‐stannyl‐amine
Author(s) -
GasparisEbeling Theo,
Nöth Heinrich
Publication year - 1990
Publication title -
chemische berichte
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.667
H-Index - 136
eISSN - 1099-0682
pISSN - 0009-2940
DOI - 10.1002/cber.19901230207
Subject(s) - silylation , chemistry , cleavage (geology) , amine gas treating , medicinal chemistry , boron , stereochemistry , catalysis , organic chemistry , geotechnical engineering , fracture (geology) , engineering
Contributions to the Chemistry of Boron, 200. ‐ B‐Functional Diboryl‐silyl‐ and Boryl‐silyl‐stannyl‐amines Stannazane cleavage of Cl 3‐ n Me n SiN(SnMe 3 ) 2 with an excess of BCl 3 leads to bis(dichloroboryl)silylamines Cl 3‐ n Me n SiN(BCl 2 , 2‐chlor‐1,3,2‐dithiaborolane, or 2‐chloro‐1,3,2‐benzodioxaborole produce boryl‐silyl‐stannyl‐amines of type X 2 BN(SiMe 3 )SnMe 3 ( 2a – c ). Cl 2 BN(SiCl 3 )SnMe 3 ( 3 ) is obtained similarly from BCl 3 and Cl 3 SiN(snMe 3. ) 2 . 3 decomposes on heating with SnN cleavage and formation of (Cl 3 SiN=BCl) 4 ( 4 ). Asymmetrically substituted diborylamines Me 3 SiN(BX 2 )‐BY 2 are prepared by substitution reactions using Me 3 SiN(BCl 2 )BY 2 or by stannazane cleavage of Y 2 BN(SiMe 3 )SnMe 3 ( 2 ) and an appropriate boron halide. Constitution and conformation of the new diboryl‐amines are deduced from multinuclear resonance spectra.