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Merck
CN

417246

Dimethylzinc solution

1.0 M in heptane

Synonym(s):

Dimethylzinc

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About This Item

Linear Formula:
(CH3)2Zn
CAS Number:
544-97-8
Molecular Weight:
95.46
Beilstein:
3587195
MDL number:
MFCD00014854
UNSPSC Code:
12352103
PubChem Substance ID:
24866132
NACRES:
NA.22

Key Documents

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form

liquid

Quality Level

100

concentration

1.0 M in heptane

bp

44-46 °C

density

0.724 g/mL at 25 °C

SMILES string

C[Zn]C

InChI

1S/2CH3.Zn/h2*1H3;

InChI key

AXAZMDOAUQTMOW-UHFFFAOYSA-N

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General description

Dimethylzinc (Zn(CH3)2) is a methylating reagent used to prepare methylated organic compounds as well as organometallic compounds containing methyl groups . It is also utilized as a reagent to prepare amino alcohols, oximes, and hydrazones from arylamines, alkoxyamines, and dialkylhydrazines respectively, by radical addition reaction in the presence of air and THF.

Dimethylzinc is a diorganozinc reagent and nucleophile used in the synthesis of propargylic amines.

Application

Dimethylzinc solution can be used as:
  • A catalyst with nickel for the stereoselective C−2 alkenylation and dialkenylation of pyridine derivatives by alkynes to give monoalkenylation products.
  • A reagent with aldehydes and 2-methoxyaniline for the synthesis of enantioselective alkyl and aralkyl secondary amines via one-pot three-component coupling reaction in the presence of zirconium tetraisopropoxide.
  • A methylating reagent for methylation of fluoroalkylated pyruvates in the presence of copper/chiral diphosphine catalyst.

Signal Word

Danger

Hazard Classifications

Aquatic Acute 1 - Aquatic Chronic 1 - Asp. Tox. 1 - Eye Dam. 1 - Flam. Liq. 2 - Pyr. Liq. 1 - Skin Corr. 1B - STOT SE 3 - Water-react 2

Target Organs

Central nervous system

Storage Class Code

4.2 - Pyrophoric and self-heating hazardous materials

WGK

WGK 3

Flash Point(F)

30.2 °F - closed cup

Flash Point(C)

-1 °C - closed cup

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Regulatory Information

监管及禁止进口产品
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Certificates of Analysis (COA)

Lot/Batch Number
SHBN5111
SHBL2186
SHBJ4691
SHBH1126V
SHBF9286V

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Tito Akindele et al.
Accounts of chemical research, 42(2), 345-355 (2008-12-31)
Developments in modern organic synthesis owe much to the field of radical chemistry. Mild reaction conditions, high selectivity, good functional group tolerance and high product yield are features that have made reactions involving radical species indispensable tools for synthetic chemists.
Diethylzinc
Georges-Pierre and E
Synlett, 1937-1938 (2014)
Dimethylzinc-mediated alkynylation of imines
Lorenzo Z et al.
The Journal of Organic Chemistry, 71, 1558-1562 (2006)
Formation of transient dimethylzinc, dimethylcadmium, and dimethyllead species via methylation of zinc (2+), cadmium (2+), and lead (2+) by a trans-dimethylcobalt complex
Witman MW and Weber JH
Inorganic Chemistry, 16(10), 2512-2515 (1977)
Kohsuke Aikawa et al.
Beilstein journal of organic chemistry, 14, 576-582 (2018-04-07)
The catalytic asymmetric methylation of fluoroalkylated pyruvates is shown with dimethylzinc as a methylating reagent in the presence of a copper catalyst bearing a chiral phosphine ligand. This is the first catalytic asymmetric methylation to synthesize various α-fluoroalkylated tertiary alcohols
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