ChemicalBook--->CAS DataBase List--->21778-81-4

21778-81-4

21778-81-4 Structure

21778-81-4 Structure
IdentificationBack Directory
[Name]

5-Methoxy-1H-indole-2-carboxylic acid
[CAS]

21778-81-4
[Synonyms]

5-METHOXY-1H-INDOLE-2-CARBOXALDEHYDE
1H-Indole-2-carboxaldehyde, 5-methoxy-
[Molecular Formula]

C10H9NO2
[MDL Number]

MFCD00297147
[MOL File]

21778-81-4.mol
[Molecular Weight]

175.18
Chemical PropertiesBack Directory
[Melting point ]

140-141 °C
[Boiling point ]

375.2±22.0 °C(Predicted)
[density ]

1.273±0.06 g/cm3(Predicted)
[storage temp. ]

under inert gas (nitrogen or Argon) at 2-8°C
[pka]

14.76±0.30(Predicted)
[Appearance]

Yellow to brown Solid
Safety DataBack Directory
[HazardClass ]

IRRITANT
[HS Code ]

2933998090
Spectrum DetailBack Directory
[Spectrum Detail]

5-Methoxy-1H-indole-2-carboxylic acid(21778-81-4)1HNMR
Hazard InformationBack Directory
[Synthesis]

5-Methoxy-1H-indole-2-Methanol

21778-77-8

5-Methoxy-1H-indole-2-carboxylic acid

21778-81-4

GENERAL STEPS: A suspension of (5-methoxy-1H-indol-2-yl)methanol (1 mmol) and activated MnO2 (10 mmol) in DMF (30 mL) was stirred at room temperature for 12 hours. After completion of the reaction, the mixture was filtered through a diatomaceous earth pad. The filtrate was concentrated under vacuum and the residue was purified by column chromatography using a solvent mixture of EtOAc-hexane as eluent to give 5-methoxy-1H-indole-2-carbaldehyde.

[References]

[1] Journal of Medicinal Chemistry, 2015, vol. 58, # 5, p. 2489 - 2512
[2] Journal of Medicinal Chemistry, 2007, vol. 50, # 25, p. 6436 - 6440
[3] European Journal of Medicinal Chemistry, 2016, vol. 121, p. 561 - 577
[4] Journal of Medicinal Chemistry, 1987, vol. 30, # 11, p. 2074 - 2080
[5] Journal of Organic Chemistry, 1984, vol. 49, # 17, p. 3195 - 3199
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