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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 402338Generated: October 26, 2026

Nitric Acid → HCID 178526653, compound

https://huagongshe.com/reaction/402338

Reaction equation

Participants

RoleNameHCIDCharge
ReactantNitric AcidHCID 944—
ReactantHCID 178516044HCID 178516044—
SolventSulfuric AcidHCID 1118—
ProductHCID 178526653HCID 17852665341.6%

Reaction Conditions

Temperature80 °C

Reaction Steps

To a mixture of 9.84 g of 2-hydroxy-5-(trifluoromethyl)pyridine and 40 ml of concentrated sulfuric acid, 10.9 g of 70% nitric acid was dropped at 80° C. This mixture was stirred at 80° C. for 1 hour. The reaction mixture was cooled down to room temperature, then, the reaction mixture was poured into ice water. The deposited solid was collected by filtration. This solid was washed with ice water, then, dissolved in ethyl acetate, and washed with saturated saline. The organic layer was dried over magnesium sulfate, then, concentrated under reduced pressure, to obtain 5.22 g of 2-hydroxy-3-nitro-5-(trifluoromethyl)pyridine.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08742112B2
Source datasetuspto-grants-2014_06
ORD IDord-e806b37e01d5444b951507f70ffb56fd
Source noteuspto-grants-2014_06