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225584

Sigma-Aldrich

Vinylmagnesium bromide solution

1.0 M in THF

Synonym(s):

Bromoethenylmagnesium, Bromovinylmagnesium

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About This Item

Linear Formula:
CH2=CHMgBr
CAS Number:
1826-67-1
Molecular Weight:
131.25
Beilstein:
3535841
MDL number:
MFCD00000042
UNSPSC Code:
12352103
PubChem Substance ID:
24853507
NACRES:
NA.22
Pricing and availability is not currently available.

Quality Level

100

reaction suitability

reaction type: Grignard Reaction

concentration

1.0 M in THF

density

0.981 g/mL at 25 °C

SMILES string

Br[Mg]C=C

InChI

1S/C2H3.BrH.Mg/c1-2;;/h1H,2H2;1H;/q;;+1/p-1

InChI key

XHHHAXOHMKAOSL-UHFFFAOYSA-M

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Application

Vinylmagnesium bromide solution (1 M in THF) may be used in the synthesis of 2-vinylchroman-4-ones by the conjugate addition with chromones in the presence of a Lewis acid.[1]
It may also be used in the following transformations:
  • (S)-3-(benzyloxy)-4-oxo-butanoic acid methyl ester to methyl (3S,4S)-4-hydroxy-3-(phenylmethoxy)hex-5-enoate.[2]
  • (R)-1-Azido-5,6-epoxyhexane to (S)-1-(4-azidobutyl)-2-propen-1-ol.[3]
  • 2,3-O-Isopropylidene-D-ribose to 1-[(4R,5S)-5-((1S)-1-hydroxyallyl)-2,2-dimethyl[1,3]dioxolan-4-yl]ethane-1,2-diol.[4]
  • (4S,5S)-2,2-Dimethyl-5-vinyl[1,3]dioxolane-4-carbaldehyde to (1R,4R,5S)- and (1S,4R,5S)-1-(2,2-dimethyl-5-vinyl[1,3]dioxolan-4-yl)prop-2-en-1-ol.[4]
  • Ethyl levulinate to ?-methyl-?-vinylbutyrolactone.[5]

Packaging

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Other Notes

Storage below 25°C may cause crystallization. Warm gently to redissolve.

Signal Word

Danger

Hazard Classifications

Acute Tox. 4 Oral - Carc. 2 - Eye Dam. 1 - Flam. Liq. 2 - Skin Corr. 1A - STOT SE 3 - Water-react 1

Target Organs

Respiratory system

Supplementary Hazards

EUH019

Storage Class Code

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

WGK

WGK 1

Flash Point(F)

1.4 °F

Flash Point(C)

-17.0 °C

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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Certificates of Analysis (COA)

Lot/Batch Number
SHBR2629
STBL4751
STBL4729
STBL3324
STBL2601

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A new asymmetric entry to 2-substituted piperidines. A concise synthesis of (+)-coniine,(?)-pelletierine,(+)-?-coniceine, and (+)-epidihydropinidine.
Takahata H
Tetrahedron Asymmetry, 7(10), 3047-3054 (1996)
Synthesis and structure?activity relationships of 2-vinylchroman-4-ones as potent antibiotic agents.
Albrecht U
Bioorganic & Medicinal Chemistry, 13(5), 1531-1536 (2005)
Improved and alternative synthesis of D-and L-cyclopentenone derivatives, the versatile intermediates for the synthesis of carbocyclic nucleosides.
Moon H R
Tetrahedron Asymmetry, 13(11), 1189-1193 (2002)
A useful new enantiomerically pure synthon from malic acid: chelation controlled activation as a route to regioselectivity.
Keck G E
The Journal of Organic Chemistry, 56(1), 417-420 (1991)
A new endogenous natriuretic factor: LLU-alpha.
Wechter W J
Proceedings of the National Academy of Sciences of the USA, 93(12), 6002-6007 (1996)
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Questions

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  1. How can I determine the shelf life / expiration / retest date of this product?

    1 answer

    1. If this product has an expiration or retest date, it will be shown on the Certificate of Analysis (COA, CofA). If there is no retest or expiration date listed on the product's COA, we do not have suitable stability data to determine a shelf life. For these products, the only date on the COA will be the release date; a retest, expiration, or use-by-date will not be displayed.
      For all products, we recommend handling per defined conditions as printed in our product literature and website product descriptions. We recommend that products should be routinely inspected by customers to ensure they perform as expected.
      For products without retest or expiration dates, our standard warranty of 1 year from the date of shipment is applicable.
      For more information, please refer to the Product Dating Information document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/449/386/product-dating-information-mk.pdf

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  2. How is shipping temperature determined? And how is it related to the product storage temperature?

    1 answer

    1. Products may be shipped at a different temperature than the recommended long-term storage temperature. If the product quality is sensitive to short-term exposure to conditions other than the recommended long-term storage, it will be shipped on wet or dry-ice. If the product quality is NOT affected by short-term exposure to conditions other than the recommended long-term storage, it will be shipped at ambient temperature. As shipping routes are configured for minimum transit times, shipping at ambient temperature helps control shipping costs for our customers. For more information, please refer to the Storage and Transport Conditions document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/316/622/storage-transport-conditions-mk.pdf

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