Merck
CN

690414

Sigma-Aldrich

丙二腈

Arxada quality, ≥99.0% (calculated, GC, KF)

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别名:
二氰基甲烷
线性分子式:
CH2(CN)2
CAS号:
分子量:
66.06
Beilstein:
773697
EC 号:
MDL编号:
PubChem化学物质编号:

质量水平

检测方案

≥99.0% (calculated, GC, KF)

形式

liquid

质量

Arxada quality

manufacturer/tradename

Arxada AG

杂质

≤0.10% water
≤0.50% (E)-2-butenedinitrile
≤0.50% (Z)-2-butenedinitrile
≤0.50% butanedinitrile

bp

220 °C (lit.)

mp

30-32 °C (lit.)

密度

1.049 g/mL at 25 °C (lit.)

储存温度

2-8°C

SMILES string

N#CCC#N

InChI

1S/C3H2N2/c4-2-1-3-5/h1H2

InChI key

CUONGYYJJVDODC-UHFFFAOYSA-N

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应用

Malononitrile is an active methylene reagent useful for condensation reactions to synthesize various synthetic intermediates and heterocycles. It is extensively used in the Knoevenagel condensation with various aldehydes and ketones.
Some of the reactions where malononitrile is used as a reactant are:
  • Synthesis of 2-pyran-4-ylidene-malononitrile (PM) based red light emitting polymers.
  • Synthesis of polysubstituted dihydropyridines.
  • Synthesis of various chromene derivatives upon treating with salicylic aldehydes.
  • Synthesis of triselenium dicyanide by treating it with selenium dioxide.

象形图

Skull and crossbonesEnvironment

警示用语:

Danger

危险分类

Acute Tox. 2 Oral - Acute Tox. 3 Dermal - Acute Tox. 3 Inhalation - Aquatic Acute 1 - Aquatic Chronic 1 - Eye Irrit. 2 - Skin Sens. 1

储存分类代码

6.1A - Combustible, acute toxic Cat. 1 and 2 / very toxic hazardous materials

WGK

WGK 3

闪点(°F)

186.8 °F - closed cup

闪点(°C)

86 °C - closed cup

个人防护装备

dust mask type N95 (US), Eyeshields, Faceshields, Gloves, type P2 (EN 143) respirator cartridges

法规信息

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The Knoevenagel condensation reaction of aromatic aldehydes with malononitrile by grinding in the absence of solvents and catalysts.
Ren, Zhongjiao et al.
Synthetic Communications, 32(22), 3475-3479 (2002)
The condensation of salicylaldehydes and malononitrile revisited: synthesis of new dimeric chromene derivatives.
Costa, Marta et al.
The Journal of Organic Chemistry, 73(5), 1954-1962 (2008)
Synthesis and characterization of new red-emitting polyfluorene derivatives containing electron-deficient 2-pyran-4-ylidene- malononitrile moieties.
Peng, Qiang et al.
Macromolecules, 37(2), 260-266 (2004)
Triselenium dicyanide from malononitrile and selenium dioxide. One-pot synthesis of selenocyanates.
Kachanov, Andrey V et al.
Tetrahedron Letters, 45(23), 4461-4463 (2004)
Synthesis of polysubstituted dihydropyridines by four-component reactions of aromatic aldehydes, malononitrile, arylamines, and acetylenedicarboxylate.
Sun, Jing et al.
Organic Letters, 12(16), 3678-3681 (2010)

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