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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 42638Generated: October 29, 2026

HCID 68704968, compound → HCID 136388716, compound

https://huagongshe.com/reaction/42638

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHCID 68704968HCID 68704968—
SolventHydrogen BromideHCID 260—
ProductHCID 136388716HCID 136388716—

Reaction Conditions

Temperature140 °C

Reaction Steps

A suspension of 4-(3,4-dimethoxy-5-nitrophenyl)-2-(2-(trifluoromethyl)pyridin-3-yl)pyrimidine (0.239 g, 0.59 mmol) in 48% hydrobromic acid (5 mL) was stirred at 140° C. for four hours and then allowed to cool to room temperature. The mixture was poured onto ice-water (100 mL) and the resulting filtrate was filtered off, washed with water and dried to give 3-nitro-5-(2-(2-(trifluoromethyl)pyridin-3-yl)pyrimidin-4-yl)benzene-1,2-diol, 0.201 g (90%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08536203B2
Source datasetuspto-grants-2013_09
ORD IDord-7fbd9b8cd62d40bd88a3206a259a6b49
Source noteuspto-grants-2013_09