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471-25-0 - Propiolic acid, 98+% - Acetylenecarboxylic acid - Propargylic acid - A13245 - Alfa Aesar

A13245 Propiolic acid, 98+%

CAS-Nummer
471-25-0
Synonyme
Acetylenecarboxylic acid
Propargylic acid

Größe Preis ($) Menge Verfügbarkeit
5g 28,08
25g 82,62
100g 233,69
Zum Warenkorb hinzufügen Zur Angebotsanfrage hinzufügen Artikel anzeigen

Propiolic acid, 98+%

MDL
MFCD00004360
EINECS
207-437-8

Chemische Eigenschaften

Formel
HC≡CCO2H
Molmasse
70.05
Schmelzpunkt
18°
Siedepunkt
102°/200mm
Flammpunkt
58°(136°F)
Dichte
1.136
Brechungsindex
1.4330
Löslichkeit
Miscible with water, ether, ethanol and chloroform.

Anwendungen

Propiolic acid is a reagent used in the preparation of transition metal complexes, haloalkyl propiolates and halopropenoates.

Bemerkungen

Store in cool place. Incompatible with bases, oxidizing agents and reducing agents.

Literaturverweise

Alkylation of the dilithio-derivative leads to higher 2-alkynoic acids. Reaction with epoxides, partial reduction (Lindlar) of the triple bond and cyclization has been used in the synthesis of unsaturated lactones: Tetrahedron Lett., 2615 (1974); J. Org. Chem., 40, 1610 (1975).

Sun, M.; Sargus, B. A.; Carey, S. J.; Kukolich, S. G. Measurements of deuterium quadrupole coupling in propiolic acid and fluorobenzenes using pulsed-beam Fourier transform microwave spectrometers. J. Chem. Phys 2015, 142 (15), 154306.

Jia, H.; Feng, H.; Sun, Z. Decarboxylative dipropargylation of primary amines with propiolic acids and formaldehyde via metal-free coupling. Tetrahedron 2015, 71 (18), 2724-2728.

GHS Gefahren- und Sicherheitshinweise

Gefahrenhinweise (EU): H301-H310-H314-H318-H226

Toxic if swallowed. Fatal in contact with skin. Causes severe skin burns and eye damage. Causes serious eye damage. Flammable liquid and vapour.

Sicherheitshinweise: P210-P260-P301+P310-P303+P361+P353-P305+P351+P338-P361-P301+P330+P331-P302+P350-P405-P501a

Keep away from heat/sparks/open flames/hot surfaces. - No smoking. Do not breathe dust/fume/gas/mist/vapours/spray. IF SWALLOWED: Immediately call a POISON CENTER or doctor/physician. IF ON SKIN (or hair): Remove/Take off immediately all contaminated clothing. Rinse skin with water/shower. IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. Rinse mouth. Do NOT induce vomiting. IF ON SKIN: Gently wash with plenty of soap and water. Store locked up. Dispose of contents/container in accordance with local/regional/national/international regulations.

Weitere Referenzen

Merck
14,7824
Beilstein
878176
Gefahrenklasse
8
Verpackungsgruppe
II
Harmonized Tariff Code
2916.19
TSCA
Yes
RTECS
UD9300000

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