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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1059659Generated: November 1, 2026

Hydrochloric Acid → HCID 22175084, compound

https://huagongshe.com/reaction/1059659

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantMethanolHCID 887—
ReactantPotassium CarbonateHCID 11430—
ReactantMethyl 3-(benzyloxy)-4,6-dibromopicolinateHCID 22175074—
SolventWaterHCID 962—
ProductHCID 22175084HCID 2217508495.3%

Reaction Steps

A vigorously stirred mixture of 15 (25.5 g), potassium carbonate (75 g) and methanol (300 mL) was heated at reflux for 30 hours. The mixture was cooled, poured into water (800 mL), and the pH adjusted to 2 by the addition of conc. HCl. The resulting mixture was extracted with CH2Cl2 (3×150 mL). The organic extracts were combined, dried (MgSO4) and the solvent was evaporated to give a nearly colorless oil (20.5 g) which slowly solidified upon standing. This was recrystallized from methanol (125 mL)/water (40 mL) to give the desired acid 16 (11.6 g), m.p. 134-135° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06521622B1
Source datasetuspto-grants-2003_02
ORD IDord-d714a4837050406ab6c8121687c73e98
Source noteuspto-grants-2003_02