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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1902609Generated: October 31, 2026

2-Butanol, 4-amino- → HCID 13059312, compound

https://huagongshe.com/reaction/1902609

Reaction equation

Participants

RoleNameHCIDCharge
Reactant2-Butanol, 4-amino-HCID 170254—
ReactantEthyl 4-chloro-1-ethyl-6-methyl-1H-pyrazolo[3,4-b]pyridine-5-carboxylateHCID 13059311—
SolventTolueneHCID 1140—
ProductHCID 13059312HCID 13059312—

Reaction Conditions

Temperature45 °C

Reaction Steps

2.75 each of 4-chloro-1-ethyl-6-methyl-1H-pyrazolo[3,4-b]pyridine-5-carboxylic acid ethyl ester and 3-hydroxy-n-butylamine are combined with 15.6 ml of dry toluene under N2 and heated at 45° C. for 48 hours. The mixture was cooled to room temperature and the toluene layer was decanted from the oil that separated out. The toluene layer was washed with water and then dried and concentrated in vacuo to yield 3.7 g of product which crystallized on trituration with hexane. This was recrytallized from hexane to yield 1.91 g of white product mp 94.5°-96.5° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04364948
Source datasetuspto-grants-1982_12
ORD IDord-9ef737f1163e4242884b69fa4a3880b3
Source noteuspto-grants-1982_12