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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 227690Generated: October 30, 2026

1H-Indazol-5-amine → HCID 57755881, compound

https://huagongshe.com/reaction/227690

Reaction equation

Participants

RoleNameHCIDCharge
Reactant1H-Indazol-5-amineHCID 88012—
ReactantMethyl 4-methyl-3-oxopentanoateHCID 2759969—
ProductHCID 57755881HCID 57755881—

Reaction Conditions

Temperature180 °C

Reaction Steps

Methyl isobutyrylacetate (3 mL) was mixed with 5-aminoindazole (0.50 g) and heated In a SmithSynthesizer to 180° C. for 300 seconds. The crude mixture was then purified by silica gel chromatography to yield the title compound as a purple solid. 1H NMR (keto- tautomer) (400 MHz, DMSO-D6) δ ppm 12.98 (s, 1H), 10.06 (s, 1H), 8.11 (s, 1H), 8.02 (s, 1H), 7.48 (d, 1H), 7.38 (d, 1H), 3.62 (s, 2H), 2.78 (sept, 1H), 1.06 (d, 6H). MS m/z 246 (M+1)+.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07560467B2
Source datasetuspto-grants-2009_07
ORD IDord-4994b890a6574dd99ac398384d6cf8cc
Source noteuspto-grants-2009_07