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A15207

Sigma-Aldrich

Acetylenedicarboxylic acid

95%

Synonym(s):

2-Butynedioic acid

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About This Item

Linear Formula:
HOOCC≡CCOOH
CAS Number:
Molecular Weight:
114.06
Beilstein:
878357
EC Number:
MDL number:
UNSPSC Code:
12352100
PubChem Substance ID:
NACRES:
NA.22

Quality Level

Assay

95%

form

crystals

mp

180-187 °C (dec.) (lit.)

storage temp.

2-8°C

SMILES string

OC(=O)C#CC(O)=O

InChI

1S/C4H2O4/c5-3(6)1-2-4(7)8/h(H,5,6)(H,7,8)

InChI key

YTIVTFGABIZHHX-UHFFFAOYSA-N

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Application

Acetylenedicarboxylic acid is generally used to synthesize its ester derivatives, dimethyl acetylenedicarboxylate (DMAD) and dimethyl acetylenedicarboxylate, which are useful precursors in organic synthesis.
Some of the common applications are listed below:
  • Acetylenedicarboxylic acid and its ester derivatives can undergo Cu(I)-catalyzed radical addition with acetophenones to yield furan derivatives.
  • It is one of the shortest linear links used in the preparation of Covalent Organic Frameworks (COFs) and Metal Organic Frameworks (MOFs) like IRMOF-0.
  • Various hexaarylbenzenes can be built via oxidative cyclodehydrogenation of diaryl alkynes derived from acetylenedicarboxylic acid.
  • It can be used as a spacer while synthesizing molecular chains or dendrimers such as 2,3,8-trifunctionalized indenoquinoxaline dendrons and bisarylacetylene chromophores.

Pictograms

Skull and crossbones

Signal Word

Danger

Hazard Statements

Hazard Classifications

Acute Tox. 3 Oral - Eye Irrit. 2 - Skin Irrit. 2 - STOT SE 3

Target Organs

Respiratory system

Storage Class Code

6.1C - Combustible acute toxic Cat.3 / toxic compounds or compounds which causing chronic effects

WGK

WGK 3

Flash Point(F)

267.8 °F

Flash Point(C)

131 °C

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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Copper (I)-Catalyzed Radical Addition of Acetophenones to Alkynes in Furan Synthesis.
Manna S and Antonchick AP.
Organic Letters, 17(17), 4300-4303 (2015)
Two-and three-photon absorption properties of fan-shaped dendrons derived from 2, 3, 8-trifunctionalized indenoquinoxaline units: synthesis and characterization.
Lin TC, et al.
Journal of Material Chemistry C, 5(32), 8219-8232 (2017)
Dimethyl Acetylenedicarboxylate
Huntress E H, et al.
Organic Syntheses, 32, 329-329 (1952)
Synthesis and multi-photon absorption properties of symmetric bisarylacetylene chromophores using functionalized isomeric pyrazinoindenocarbazole units as the rigid aryl substituents.
Lin TC, et al.
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Monolayer Field?Effect Transistors of Nonplanar Organic Semiconductors with Brickwork Arrangement.
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