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364401

Sigma-Aldrich

Dimethylzinc solution

2.0 M in toluene

Synonym(s):

Dimethylzinc

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About This Item

Linear Formula:
(CH3)2Zn
CAS Number:
544-97-8
Molecular Weight:
95.46
Beilstein/REAXYS Number:
3587195
MDL number:
MFCD00014854
UNSPSC Code:
12352103
PubChem Substance ID:
24862428
NACRES:
NA.22

Quality Level

100

concentration

2.0 M in toluene

density

0.931 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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Application

Dimethylzinc 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 enantioselective synthesis of alkyl and aralkyl secondary amines via one-pot three-component coupling reaction in the presence of zirconium tetraisopropoxide.
  • A methylating reagent for the methylation of fluoroalkylated pyruvates in the presence of a copper/chiral diphosphine catalyst.
  • An activator for radical trifluoromethylation of silyl enol ethers leading to α-trifluoromethyl ketones.

signalword

Danger

Hazard Classifications

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

target_organs

Central nervous system

Storage Class

4.2 - Pyrophoric and self-heating hazardous materials

wgk_germany

WGK 3

flash_point_f

1.4 °F - closed cup

flash_point_c

-17 °C - closed cup

ppe

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

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Certificates of Analysis (COA)

Lot/Batch Number
STBJ7812
SHBL2658
SHBJ0920
STBD1420V
STBB6939V

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Koichi Mikami et al.
Organic letters, 8(21), 4671-4673 (2006-10-06)
[reaction: see text] The radical trifluoromethylation of ketone silyl enol ethers gave alpha-CF(3) ketones in good yields with wide scope of the ketonic substrates including acyclic ketones and cyclopentanone. The use of dialkylzinc to activate the silyl enol ethers is
Radical trifluoromethylation of ketone silyl enol ethers by activation with dialkylzinc.
Mikami K, et al.
Organic Letters, 8(21), 4671-4673 (2006)
Copper-catalyzed asymmetric methylation of fluoroalkylated pyruvates with dimethylzinc.
Aikawa K, et al.
Beilstein Journal of Organic Chemistry, 14(1), 576-582 (2018)
Three-component catalytic asymmetric synthesis of aliphatic amines.
Porter JR, et al.
Journal of the American Chemical Society, 123(42), 10409-10410 (2001)
A strategy for C-H activation of pyridines: direct C-2 selective alkenylation of pyridines by Nickel/Lewis Acid catalysis.
Nakao Y, et al.
Journal of the American Chemical Society, 130(8), 2448-2449 (2008)

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