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Sodium triethylborohydride

From Wikipedia, the free encyclopedia

Sodium triethylborohydride
Identifiers
3D model (JSmol)
ChemSpider
ECHA InfoCard 100.038.079 Edit this at Wikidata
EC Number
  • 241-903-1
  • InChI=1S/C6H15B.Na/c1-4-7(5-2)6-3;/h4-6H2,1-3H3;/q-1;+1
    Key: UKYGKELSBAWRAN-UHFFFAOYSA-N
  • [B-](CC)(CC)CC.[Na+]
Properties
C6H16BNa
Molar mass 121.99
Appearance white solid
Melting point 30 °C
Hazards
Occupational safety and health (OHS/OSH):
Main hazards
 pyrophoric
GHS labelling:
GHS02: Flammable
GHS05: Corrosive
Danger
H261, H314
P231+P232, P260, P264, P280, P301+P330+P331, P303+P361+P353, P304+P340, P305+P351+P338, P310, P321, P363, P370+P378, P402+P404, P405, P501
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).

Sodium triethylborohydride is an organoboron compound with the formula NaBH(C2H5)3. It is a colorless, pyrophoric solid that is commercially available in toluene solution, unlike the related LiBH(C2H5)3 which is typically sold as a THF solution.[1] It is commonly used for the reductive activation of homogeneous catalysts, converting metal halides to hydrides. Sodium triethylborohydride has been prepared by treating a hot toluene slurry of sodium hydride with triethylborane.[2] The trimethylborohydride analogue, which is assumed to be structurally similar to the triethylborohydride, adopts a tetrameric structure in toluene solution.[3] NaBHEt3 forms a dimeric adduct with tmeda.[4]

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Transcription

References

  1. ^ "Callery Borane Products | Callery.com | Callery". Callery. 2017-03-05. Retrieved 2017-03-05.
  2. ^ Binger, P.; Köster, R., "Sodium triethylhydroborate, sodium tetraethylborate, and sodium triethyl-1-propynylborate", Inorg. Synth. 1974, 15, 136-141. doi:10.1002/9780470132463.ch31
  3. ^ Bell, N. A.; Coates, G. E.; Heslop, J. A., "Sodium hydridotrimethylboronate and its ether solvate. Study of hydridotrialkylboronates as reagents for the preparation of beryllium hydrides", J. Organomet. Chem. 1987, volume 329, 287-291. doi:10.1016/0022-328X(87)80062-1
  4. ^ Haywood, Joanna; Wheatley, Andrew E. H. (2009). "Metal-Hydride Bonding in Higher Alkali Metal Boron Monohydrides". European Journal of Inorganic Chemistry. 2009 (33): 5010–5016. doi:10.1002/ejic.200900756.
This page was last edited on 11 February 2024, at 11:24
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