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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1531754Generated: November 2, 2026

Acetic Acid → HCID 21250330, compound

https://huagongshe.com/reaction/1531754

Reaction equation

Participants

RoleNameHCIDCharge
ReactantAcetic AcidHCID 176—
ReactantPyridineHCID 1049—
ReactantBenzyl chloroformateHCID 10387—
Reactant6-Chloropyridine-2,3-diamineHCID 10630615—
SolventTetrahydrofuranHCID 8028—
ProductHCID 21250330HCID 21250330—

Reaction Steps

1.2 g (8.8 mmol) of 2,3-diamino-6-chloro-pyridine are dissolved in 20 ml tetrahydrofuran and, after the addition of 2 ml pyridine at 0° C., mixed with 2 ml of benzyl chloroformate. After heating to ambient temperature the mixture is combined with ice water, adjusted to pH 4 with glacial acetic acid and extracted with ethyl acetate. The combined organic extracts are dried and evaporated down. The residue is chromatographed on silica gel and eluted with petroleum ether/ethyl acetate (9:1 and 1:1).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06200976B1
Source datasetuspto-grants-2001_03
ORD IDord-ad110c71fdc3490db69503187ba58fcf
Source noteuspto-grants-2001_03