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42974-19-6

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42974-19-6 Structure

42974-19-6 Structure
IdentificationBack Directory
[Name]

benzofuran-2-carbohydrazide
[CAS]

42974-19-6
[Synonyms]

Benzo[b]furan-2-carbohydrazide
2-Benzofurancarboxylic acid, hydrazide
1-Benzofuran-2-carbohydrazide, 2-(Hydrazinocarbonyl)-1-benzofuran, 2-(Hydrazinocarbonyl)benzo[b]furan
[Molecular Formula]

C9H8N2O2
[MDL Number]

MFCD00456546
[MOL File]

42974-19-6.mol
[Molecular Weight]

176.17
Chemical PropertiesBack Directory
[Melting point ]

190-194 °C
[density ]

1.316±0.06 g/cm3(Predicted)
[pka]

12.27±0.30(Predicted)
Safety DataBack Directory
[Symbol(GHS) ]


GHS07
[Signal word ]

Warning
[Hazard statements ]

H315-H319-H335
[Precautionary statements ]

P261-P271-P280
Hazard InformationBack Directory
[Uses]

benzofuran-2-carbohydrazide is a small molecule compound used in organic synthesis.
[Preparation]

Synthesis of benzofuran-2-carbohydrazide: Ethylbenzofuran-2-carboxylate (17.40 g, 0.1 mol) and hydrazine hydrate 99 % (4.8 mL, 0.1 mol) in methanol (35.0 mL) was refluxed for 8 h. The reaction mixture was concentrated and a solid was formed filtered and recrystallized from methanol. The precipitate obtained is benzofuran2-carbohydrazide.
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