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Solvates of Sodium Bis(borane)dimethylamide
Author(s) -
Nöth Heinrich,
Thomas Steffen
Publication year - 1999
Publication title -
european journal of inorganic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.667
H-Index - 136
eISSN - 1099-0682
pISSN - 1434-1948
DOI - 10.1002/(sici)1099-0682(199908)1999:8<1373::aid-ejic1373>3.0.co;2-7
Subject(s) - chemistry , borane , dimethylamine , sodium , medicinal chemistry , metal , solid state , boranes , hydrogen , inorganic chemistry , crystallography , organic chemistry , catalysis , boron
The reaction of sodium metal with dimethylamine–borane in THF yields Na[(H 3 B) 2 NMe 2 ] ( 1 ) which can be isolated as {Na[(H 3 B) 2 NMe 2 ]} 5 · THF or as Na[(H 3 B) 2 NMe 2 ] · 15‐crown‐5 ( 2 ) and Na[(H 3 B) 2 NMe 2 ] · benzo‐15‐crown‐5 ( 3 ) after addition of the appropriate crown ether to the THF solution of 1 . Reaction of 1 with ZrCl 4 yields Me 2 HN–BH 2 –NMe 2 –BH 3 ( 4 ), the structure of which has been determined. In THF solution, 1 reduces aldehydes, ketones, acyl chlorides, and esters to the corresponding alcohols. It also reacts slowly with nitriles and allylbenzene. Compound ( 1 ) 5 · THF crystallizes in an extended three‐dimensional lattice, in which the Na atoms are coordinated by 6–9 hydridic H atoms, while 3 is a molecular compound in the solid state. Only one hydrogen atom of each BH 3 group coordinates to the sodium center. On the other hand, 4 forms dimeric associates in the solid state through N–H ··· H–B interactions.