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346152

Sigma-Aldrich

Ethynylmagnesium bromide solution

0.5 M in THF

Linear Formula:
HC≡CMgBr
CAS Number:
Molecular Weight:
129.24
Beilstein:
3600874
MDL number:
PubChem Substance ID:
NACRES:
NA.22

Quality Level

reaction suitability

reaction type: Grignard Reaction

concentration

0.5 M in THF

density

0.94 g/mL at 25 °C

storage temp.

2-8°C

SMILES string

Br[Mg]C#C

InChI

1S/C2H.BrH.Mg/c1-2;;/h1H;1H;/q;;+1/p-1

InChI key

HUGJUYPSXULVQQ-UHFFFAOYSA-M

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Application

Ethynylmagnesium bromide solution can be used in:
  • The preparation of the alkyne component in an enyne cross-metathesis leading to conjugated dienes.
  • Ethynylation of chiral α-(dibenzylamino) aldehydes.
  • The synthesis of ethynyl aziridines.
  • To prepare alkyl(triethynyl)germanes from tert-alkyltrichlorogermanes and 2-butyltrichlorogermane.
  • The preperation of a key intermediate in the total synthesis of (+)-4-demethoxydaunomycin.

Packaging

100, 800 mL in Sure/Seal™

Signal Word

Danger

Hazard Classifications

Acute Tox. 4 Oral - Carc. 2 - Eye Dam. 1 - Flam. Liq. 2 - Skin Corr. 1B - Water-react. 2

Supplementary Hazards

Storage Class Code

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

WGK

WGK 3

Flash Point(F)

-20.2 °F

Flash Point(C)

-29 °C

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificate of Analysis

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Certificate of Origin

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