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Sigma-Aldrich

Methyllithium solution

1.6 M in diethyl ether

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Synonym(s):
Lithium methanide, MeLi
Empirical Formula (Hill Notation):
CH3Li
CAS Number:
Molecular Weight:
21.98
Beilstein:
3587162
MDL number:
PubChem Substance ID:
NACRES:
NA.22

vapor density

3 (vs air)

Quality Level

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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1 of 4

This Item
186198468568186171
Hexyllithium solution 2.3 M in hexane

Sigma-Aldrich

468568

Hexyllithium solution

form

liquid

form

liquid

form

-

form

liquid

concentration

1.6 M in diethyl ether

concentration

1.7 M in pentane

concentration

2.3 M in hexane

concentration

1.6 M in hexanes

density

0.732 g/mL at 25 °C

density

0.652 g/mL at 25 °C

density

0.708 g/mL at 25 °C

density

0.68 g/mL at 25 °C

storage temp.

2-8°C

storage temp.

2-8°C

storage temp.

2-8°C

storage temp.

2-8°C

Quality Level

100

Quality Level

200

Quality Level

200

Quality Level

200

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.

Legal Information

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

Signal Word

Danger

Hazard Classifications

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

Supplementary Hazards

Storage Class Code

4.2 - Pyrophoric and self-heating hazardous materials

WGK

WGK 1

Flash Point(F)

1.4 °F - closed cup

Flash Point(C)

-17 °C - closed cup


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Kiran Kumar Solingapuram Sai et al.
Applied radiation and isotopes : including data, instrumentation and methods for use in agriculture, industry and medicine, 129, 57-61 (2017-08-15)
We automated radiochemical synthesis of 1-[
Enantioselective addition of organolithium reagents to 3, 4-dihydroisoquinoline in the presence of (?)-sparteine as an external ligand. Application for the synthesis of isoquinoline alkaloids.
Chrzanowska M
Tetrahedron Asymmetry, 12(10), 1435-1440 (2001)
A Simplified Approach with 3D Visuals
Vasishta Bhatt
Essentials of Coordination Chemistry: A Simplified Approach with 3D Visuals, 183-183 (2015)
Mingyang Zhang et al.
Macromolecular rapid communications, 41(18), e2000323-e2000323 (2020-08-11)
Carbon monoxide (CO) has emerged as a potential therapeutic agent for the treatment of many diseases. However, the therapeutic outcome is highly dependent on the dosages and administration sites. Hence, there is mounting interest in the development of CO-releasing materials
Cu-catalyzed enantioselective allylic alkylation with organolithium reagents.
Hornillos V, et al.
Nature Protocols, 12(3), 493-493 (2017)

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