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709608-85-5

709608-85-5 Structure

709608-85-5 Structure
IdentificationBack Directory
[Name]

4-Hydroxymethyl-1H-indazole
[CAS]

709608-85-5
[Synonyms]

709608-85-5
(1H-Indazol-4-yl)
1H-INDAZOLE-4-METHANOL
(1H-indazol-4-yl)methanol
4-Hydroxymethyl-1H-indazole
[Molecular Formula]

C8H8N2O
[MDL Number]

MFCD11052642
[MOL File]

709608-85-5.mol
[Molecular Weight]

148.164
Chemical PropertiesBack Directory
[Boiling point ]

380.3±17.0 °C(Predicted)
[density ]

1.360±0.06 g/cm3(Predicted)
[storage temp. ]

Sealed in dry,Room Temperature
[form ]

solid
[pka]

13.92±0.40(Predicted)
[color ]

Grey to beige to brown
[CAS DataBase Reference]

709608-85-5
Safety DataBack Directory
[Symbol(GHS) ]


GHS07
[Signal word ]

Warning
[Hazard statements ]

H302
[Precautionary statements ]

P280-P305+P351+P338
[HS Code ]

2933998090
Spectrum DetailBack Directory
[Spectrum Detail]

4-Hydroxymethyl-1H-indazole(709608-85-5)1HNMR
4-Hydroxymethyl-1H-indazole(709608-85-5)FT-IR
Hazard InformationBack Directory
[Synthesis]

Methyl 1H-indazole-4-carboxylate

192945-49-6

4-Hydroxymethyl-1H-indazole

709608-85-5

General procedure for the synthesis of 4-(hydroxymethyl)-1H-indazole from methyl indazole-4-carboxylate: synthesis of (1H-indazol-4-yl)-methanol (18b): the ester obtained above (40 mg, 0.23 mmol) was dissolved in 1 mL of tetrahydrofuran (THF) and the solution was cooled to 0°C. A THF solution (1.0 M, 2.3 mL, 2.3 mmol) of diisobutylaluminum hydride (DIBAL) was added slowly and dropwise. The addition of DIBAL was continued until the feedstock was completely consumed. Upon completion of the reaction, the reaction was quenched with saturated sodium potassium tartrate solution and gradually warmed to room temperature. The reaction mixture was extracted using ethyl acetate. The organic phases were combined and dried with anhydrous magnesium sulfate (MgSO4). Subsequently, the solvent was removed by reduced pressure distillation and the residue was purified by column chromatography (75% ethyl acetate/hexane). The final target product (20 mg, 60% yield) was obtained as a white solid. Mass spectrometry (electrospray ionization) analysis showed that the theoretical value of M + H = 149.1 and the measured value = 149.1.

[References]

[1] Patent: WO2007/51062, 2007, A2. Location in patent: Page/Page column 126-127
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