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192120

Sigma-Aldrich

Borane dimethyl sulfide complex solution

2.0 M in THF

Synonym(s):

BMS, Trihydro[thiobis[methane]]boron

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About This Item

Linear Formula:
(CH3)2S · BH3
CAS Number:
Molecular Weight:
75.97
Beilstein/REAXYS Number:
3663489
MDL number:
UNSPSC Code:
12352112
PubChem Substance ID:
NACRES:
NA.22

form

liquid

Quality Level

reaction suitability

reagent type: reductant

concentration

2.0 M in THF

density

0.855 g/mL at 25 °C

storage temp.

2-8°C

SMILES string

B.CSC

InChI

1S/C2H6S.BH3/c1-3-2;/h1-2H3;1H3

InChI key

RMHDLBZYPISZOI-UHFFFAOYSA-N

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General description

Borane dimethyl sulfide complex (BMS) acts as a highly efficient and selective reducing agent in the presence of catalytic sodium tetrahydroborate for α-hydroxy esters. Asymmetric borane reduction of a variety of prochiral ketones with BMS using spiroborate esters as catalyst has been reported.

Application

Borane dimethyl sulfide complex (BMS) solution may be used in the following studies:
  • One-pot conversion of alkynes into 1,2-diols.
  • Preparation of iminopentitols.
  • Reduction of representative organic functional groups, such as esters, nitriles and amides.
  • Used along with a dendrimeric supported L-pyrrolidinol in the asymmetric reduction of indanones and tetralones.
  • Asymmetric reduction of ferrocenyl-1,3-diketones to chiral 1,3-diols.
  • Highly enantioselective reduction of ketones catalyzed by C3-symmetric tripodal hydroxyamides.
Reactant used as a regioselective reducing agent

Reactant involved in:
  • Hydroboration / oxidation
Synthesis of cage compounds

signalword

Danger

Hazard Classifications

Acute Tox. 4 Dermal - Acute Tox. 4 Oral - Carc. 2 - Eye Dam. 1 - Flam. Liq. 2 - Repr. 1B - STOT SE 3 - Water-react 1

target_organs

Respiratory system

supp_hazards

Storage Class

4.3 - Hazardous materials which set free flammable gases upon contact with water

wgk_germany

WGK 1

flash_point_f

1.4 °F - closed cup

flash_point_c

-17 °C - closed cup

ppe

Eyeshields, Faceshields, Gloves, type ABEK (EN14387) respirator filter


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Novel spiroborate esters derived nonracemic 1,2-aminoalcohols and ethylene glycol are reported as highly effective catalysts for the asymmetric borane reduction of a variety of prochiral ketones with borane-dimethyl sulfide complex at room temperature. Optically active alcohols were obtained in excellent
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