| Identification | Back Directory | [Name]
PROPYNOIC ACID AMIDE | [CAS]
7341-96-0 | [Synonyms]
Propynamide
Propiolamide
2-Propynamide
HCequivCCONH2
prop-2-ynaMide
Propiolamide 97%
2-Propynamide (9CI)
PROPYNOIC ACID AMIDE
Propiolic acid amide
PropynoicAcidAmide,Propynamide
Propiolamide(Propiolic acid amide) | [Molecular Formula]
C3H3NO | [MDL Number]
MFCD04035573 | [MOL File]
7341-96-0.mol | [Molecular Weight]
69.06 |
| Chemical Properties | Back Directory | [Appearance]
Waxy Yellow Solid | [Melting point ]
61-62°C | [Boiling point ]
134.6±23.0 °C(Predicted) | [density ]
1.102±0.06 g/cm3(Predicted) | [storage temp. ]
-20°C Freezer | [solubility ]
DMSO, Methanol | [form ]
Solid | [pka]
13.48±0.50(Predicted) | [color ]
Waxy Yellow | [InChI]
InChI=1S/C3H3NO/c1-2-3(4)5/h1H,(H2,4,5) | [InChIKey]
HCJTYESURSHXNB-UHFFFAOYSA-N | [SMILES]
C(N)(=O)C#C | [CAS DataBase Reference]
7341-96-0 |
| Hazard Information | Back Directory | [Chemical Properties]
Waxy Yellow Solid | [Uses]
Propiolamide (cas# 7341-96-0) is a compound useful in organic synthesis. | [Definition]
ChEBI: Propynamide is a ynamide, a terminal acetylenic compound and a primary carboxamide. It is functionally related to a propynoic acid. | [Synthesis]
General procedure for the synthesis of propargylamide from methyl propargylate:
1. Synthesis of propargylamide: Methyl propargylate (25 mL, 281 mmol) was slowly added dropwise to concentrated ammonia (25 mL, 281 mmol) at 30 °C. The reaction mixture was stirred at -30 °C for 20 min. Subsequently, the solvent was removed by distillation under reduced pressure. Ether (200 mL) was added to the residue, the mixture was filtered and the filtrate was concentrated to afford the target product propargylamide (18.5 g, 95.4% yield) as a solid. The product was characterized by 1H-NMR (DMSO-d6): δ 4.08 (1H, s), 7.62 (1H, br s), 8.08 (1H, br s). | [References]
[1] Bioorganic and Medicinal Chemistry, 2009, vol. 17, # 1, p. 360 - 367
[2] Tetrahedron, 2004, vol. 60, # 31, p. 6665 - 6677
[3] Patent: EP1813606, 2007, A1. Location in patent: Page/Page column 88
[4] Journal of the American Chemical Society, 2001, vol. 123, # 49, p. 12353 - 12363
[5] Patent: EP1007509, 2004, B1. Location in patent: Page 6-7 |
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