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Sigma-Aldrich

Dimethyl chloromalonate

94%

Synonym(s):

1,3-Dimethyl 2-chloropropanedioate, 2-Chloro-malonic acid dimethyl ester, Chloropropanedioic acid dimethyl ester, Dimethyl α-chloromalonate, Dimethyl 2-chloromalonate, Dimethyl 2-chloropropanedioate

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About This Item

Linear Formula:
ClCH(COOCH3)2
CAS Number:
28868-76-0
Molecular Weight:
166.56
Beilstein/REAXYS Number:
1768415
EC Number:
249-275-0
MDL number:
MFCD00042837
UNSPSC Code:
12352100
PubChem Substance ID:
24863315
NACRES:
NA.22

assay

94%

form

liquid

impurities

4-5% dimethyl dichloromalonate

refractive index

n20/D 1.437 (lit.)

bp

105-106 °C/19 mmHg (lit.)

density

1.305 g/mL at 25 °C (lit.)

SMILES string

COC(=O)C(Cl)C(=O)OC

InChI

1S/C5H7ClO4/c1-9-4(7)3(6)5(8)10-2/h3H,1-2H3

InChI key

LNBQBURECUEBKZ-UHFFFAOYSA-N

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General description

Dimethyl chloromalonate (dimethyl 2-chloromalonate) is a dialkyl 2-substituted malonate. Carbanions of dimethyl chloromalonate are reported to react with naphthoquinone derivatives, via vicarious nucleophilic substitution or oxidative nucleophilic substitution of hydrogen processes. Dimethyl chloromalonate is reported to react with hydroquinone and monosubstituted hydroquinones to afford 2-oxido-benzo[b]furan derivatives. Synthesis of dimethyl 2-chloromalonate, via chlorination of dimethyl malonate has been reported.

Application

Dimethyl chloromalonate is suitable for use in the synthesis of 4,5,6-trichloropyrimidine. It may be used in the stereoselective synthesis of highly functionalized nitrocyclopropanes. It may be used in one-pot synthesis of tetra-alkoxycarbonylallylidenetriphenylphosphoranes.

pictograms

Corrosion
GHS05

signalword

Danger

hcodes

H314

Hazard Classifications

Skin Corr. 1B

Storage Class

8A - Combustible corrosive hazardous materials

wgk_germany

WGK 3

flash_point_f

224.6 °F - closed cup

flash_point_c

107 °C - closed cup

ppe

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

Certificates of Analysis (COA)

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A preparative method for Synthesis of 4, 5, 6-trichloropyrimidine.
Ostrowski S, et al.
ARKIVOC (Gainesville, FL, United States), 6, 905-908 (2000)
An Efficient and Practical Synthesis of Dimethyl 2-chloromalonate.
Babu GR, et al.
Der Pharma Chemica, 3(6) (2011)
Vicarious nucleophilic substitution of hydrogen (VNS) in 1, 4-naphthoquinone derivatives-competition between VNS and vinylic nucleophilic substitution (SN V).
Ma?kosza M and Nizamov S.
Tetrahedron, 57(47), 9615-9621 (2001)
New one-pot synthesis of tetra-alkoxycarbonylallylidenetriphenylphosphoranes.
Yavari I and Baharfar R.
Tetrahedron Letters, 39(9), 1051-1054 (1998)
The reaction of hydroquinone and monosubstituted hydroquinones with dimethyl chloromalonate.
Renfrew AH, et al.
Journal of the Chemical Society. Perkin Transactions 1, 2382-2386 (1979)
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