ChemicalBook--->CAS DataBase List--->73540-75-7

73540-75-7

73540-75-7 Structure

73540-75-7 Structure
IdentificationBack Directory
[Name]

N,N-diethylthiophene-3-carboxylamide
[CAS]

73540-75-7
[Synonyms]

N,N-diethyl-3-Thiophenecarboxamide
N,N-diethylthiophene-3-carboxylamide
3-ThiophenecarboxaMide, N,N-diethyl-
3-thiophenecarboxylic acid,N,N-diethylamide
[Molecular Formula]

C9H13NOS
[MDL Number]

MFCD11742083
[MOL File]

73540-75-7.mol
[Molecular Weight]

183.27
Chemical PropertiesBack Directory
[Boiling point ]

296.0±13.0 °C(Predicted)
[density ]

1.096±0.06 g/cm3(Predicted)
[storage temp. ]

Keep in dark place,Sealed in dry,2-8°C
[pka]

-0.85±0.70(Predicted)
[InChI]

InChI=1S/C9H13NOS/c1-3-10(4-2)9(11)8-5-6-12-7-8/h5-7H,3-4H2,1-2H3
[InChIKey]

DMGZZYONMSPHOF-UHFFFAOYSA-N
[SMILES]

C1SC=CC=1C(N(CC)CC)=O
Questions And AnswerBack Directory
[Uses]

N,N-diethylthiophene-3-carboxylamide belongs to amide derivatives and can be used as intermediates in organic synthesis.
Safety DataBack Directory
[Symbol(GHS) ]

Exclamation Mark (GHS07)
GHS07
[Signal word ]

Warning
[Hazard statements ]

H302-H315-H319-H332-H335
[Precautionary statements ]

P261-P280-P305+P351+P338
[HS Code ]

2934999090
Hazard InformationBack Directory
[Synthesis]

3-Thiophenecarbonyl chloride

41507-35-1

Diethylamine

109-89-7

N,N-diethylthiophene-3-carboxylamide

73540-75-7

Diethylamine (60 mL) was added to a 500 mL round bottom flask and cooled in an ice bath. Thiophene-3-carbonyl chloride (compound g-1) was dissolved in 10 mL of dichloromethane and slowly added dropwise to the reaction flask. The reaction mixture was stirred at room temperature for 30 minutes. Subsequently, the organic phase was separated by extraction with dichloromethane and NaCl aqueous solution to afford dark yellow liquid N,N-diethyl-3-thiophenecarboxamide (compound g-2) in 58% yield.

[References]

[1] Journal of Materials Chemistry A, 2016, vol. 4, # 47, p. 18409 - 18415
[2] Tetrahedron, 2016, vol. 72, # 17, p. 2219 - 2225
[3] Macromolecules, 2014, vol. 47, # 3, p. 1008 - 1020
[4] New Journal of Chemistry, 2015, vol. 39, # 3, p. 2248 - 2255
[5] Patent: KR101495152, 2015, B1. Location in patent: Paragraph 0184; 0188-0189
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