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Sigma-Aldrich

Methyllithium solution

1.6 M in diethyl ether

Sinónimos:

Lithium methanide, MeLi

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About This Item

Fórmula empírica (notación de Hill):
CH3Li
Número de CAS:
917-54-4
Peso molecular:
21.98
Beilstein/REAXYS Number:
3587162
MDL number:
MFCD00008253
UNSPSC Code:
12352103
PubChem Substance ID:
24851824
NACRES:
NA.22

vapor density

3 (vs air)

Quality Level

100

form

liquid

composition

halide, ~0.05 M

concentration

1.6 M in diethyl ether

density

0.732 g/mL at 25 °C

storage temp.

2-8°C

SMILES string

[Li]C

InChI

1S/CH3.Li/h1H3;

InChI key

DVSDBMFJEQPWNO-UHFFFAOYSA-N

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General description

Methyllithium is an organolithium reagent mainly used for deprotonation and as a source of methyl anion. It is a strong base and a strong nucleophile.

Application

Methyllithium solution (1.6M in diethyl ether) has been used for the asymmetric allylic alkylation (AAA) of allylic electrophiles in the presence of a chiral copper catalyst. This protocol leads to the C-C bond formation of tertiary and quaternary stereogenic centers with high enantioselectivity. It can also be used for the synthesis of (−)-salsolidine by reacting with 6,7-dimethoxy-3,4-dihydroisoquinoline in the presence of (−)-sparteine as a chiral ligand.

Packaging

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

Legal Information

Sure/Seal is a trademark of Sigma-Aldrich Co. LLC

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Danger

Hazard Classifications

Acute Tox. 4 Oral - Flam. Liq. 2 - Pyr. Liq. 1 - Skin Corr. 1B - STOT SE 3 - Water-react 1

supp_hazards

EUH019,EUH066

Storage Class

4.2 - Pyrophoric and self-heating hazardous materials

wgk_germany

WGK 1

flash_point_f

1.4 °F - closed cup

flash_point_c

-17 °C - closed cup

Certificados de análisis (COA)

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Chrzanowska M
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