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Documentos Principais

656984

Sigma-Aldrich

Isopropylmagnesium chloride lithium chloride complex solution

1.3 M in THF

Sinônimo(s):

Turbo Grignard

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About This Item

Fórmula linear:
(CH3)2CHMgCl · LiCl
Peso molecular:
145.24
Número MDL:
Código UNSPSC:
12352103
ID de substância PubChem:
NACRES:
NA.22
Preço e disponibilidade não estão disponíveis no momento.

adequação da reação

reaction type: Grignard Reaction

Nível de qualidade

100
200

concentração

1.3 M in THF

densidade

0.951 g/mL at 25 °C

cadeia de caracteres SMILES

[Li]Cl.CC(C)[Mg]Cl

InChI

1S/C3H7.2ClH.Li.Mg/c1-3-2;;;;/h3H,1-2H3;2*1H;;/q;;;2*+1/p-2

chave InChI

CWTUREABAILGIK-UHFFFAOYSA-L

Aplicação

Reagent for Selective Metalations

Used for:
  • Preparation of functionalized acyclic alkenyl magnesium reagents/preparation of 1,2-diketones
  • Preparation of cyclic alkenyl and dienyl magnesium reagents
  • Preparation of functionalized triazenes/preparation of carbazoles
  • Regioselective functionalization of trisubstituted pyridines
  • Electrophilic amination for preparation of amines
  • Preparation of Grignards reagents in the presence of masked ketones and aldehydes (using readily deprotectable silylated cyanohydrins)
  • Preparation of Benzylic Grignards via Sulfur-Magnesium exchange
  • Functionalization via I-Mg Exchange of unprotected aromatic and heteroaromatic carboxylic acids
  • Functionalization via I-Mg Exchange of unprotected imidazoles
  • Pyridyne formation
  • Functionalization of cyclopentene derivatives
  • Preparation of 2,3-functionalized furans, benzofurans, and thiophenes
  • Stereoselective synthesis of substituted cyclopropanes
Reagent used with CH3MgCl/LiCl to affect magnesium-halogen exchange on unprotected aryl carboxylic acids.[1]

Embalagem

The 25 mL Sure/Seal bottle is recommended as a single-use bottle. Repeated punctures will likely result in decreased performance of product.

Informações legais

Product of Albemarle US Inc
Sure/Seal is a trademark of Sigma-Aldrich Co. LLC

Palavra indicadora

Danger

Frases de perigo

Classificações de perigo

Carc. 2 - Eye Dam. 1 - Flam. Liq. 2 - Skin Corr. 1B - STOT SE 3

Órgãos-alvo

Central nervous system, Respiratory system

Perigos de suplementos

Código de classe de armazenamento

3 - Flammable liquids

Classe de risco de água (WGK)

WGK 3

Ponto de fulgor (°F)

1.4 °F

Ponto de fulgor (°C)

-17 °C

Equipamento de proteção individual

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


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Felix Kopp et al.
Chemical communications (Cambridge, England), (20), 2075-2077 (2007-08-24)
The magnesiation of halogenated aromatic and heteroaromatic carboxylic acids is accomplished by their treatment with MeMgCl in the presence of LiCl and subsequent reaction with i-PrMgCl.LiCl; the resulting double-magnesiated species react with a variety of electrophiles in up to 97%

Artigos

Salt additives increase both the rate and the efficiency of the Mg-halogen exchange reaction. The most effective reagents are generated with R-MgCl (R = i-Pr, s-Butyl) and 1.0 equiv of LiCl.

Transformative reagents enable selective conversions within molecules containing sensitive functionalities under mild reactions.

Questions

1–2 of 2 Questions  
  1. 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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  2. 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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