303666
2-Butynoic acid
98%
Sinonimo/i:
Tetrolic acid
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About This Item
Formula condensata:
CH3C≡CCO2H
Numero CAS:
Peso molecolare:
84.07
Numero CE:
Numero MDL:
Codice UNSPSC:
12352100
ID PubChem:
NACRES:
NA.22
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Livello qualitativo
Saggio
98%
Stato
solid
Punto di fusione
78-80 °C (lit.)
Gruppo funzionale
carboxylic acid
Stringa SMILE
CC#CC(O)=O
InChI
1S/C4H4O2/c1-2-3-4(5)6/h1H3,(H,5,6)
LUEHNHVFDCZTGL-UHFFFAOYSA-N
Categorie correlate
Descrizione generale
The rotational spectrum of 2-butynoic acid was measured by pulsed supersonic-jet Fourier transform microwave spectroscopy.
Applicazioni
2-Butynoic acid was employed as synthon in a variety of reactions, including cycloacylation of phenols to flavones and chromones, and cyclization to γ-butyrolactones. It was also used in synthesis of Z-trisubstituted olefins via γ-alkylation.
Avvertenze
Danger
Indicazioni di pericolo
Classi di pericolo
Eye Dam. 1 - Skin Corr. 1B
Codice della classe di stoccaggio
8A - Combustible corrosive hazardous materials
Classe di pericolosità dell'acqua (WGK)
WGK 3
Dispositivi di protezione individuale
Eyeshields, Faceshields, Gloves, type P3 (EN 143) respirator cartridges
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The Journal of Organic Chemistry, 56, 5120-5120 (1991)
Almost free methyl top internal rotation: Rotational spectrum of 2-butynoic acid.
Ilyushin V, et al.
Journal of Molecular Spectroscopy, 267(1), 186-190 (2011)
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