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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1956421Generated: October 30, 2026

Phosphorus oxychloride → 5-Chloro-3-ethoxy-2-methyl-1,8-naphthyridine

https://huagongshe.com/reaction/1956421

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPhosphorus oxychlorideHCID 24813—
ReactantHCID 178465839HCID 178465839—
Product5-Chloro-3-ethoxy-2-methyl-1,8-naphthyridineHCID 19374266—

Reaction Steps

In a similar manner to Example B1, 6-ethoxy-7-methyl-1,8-naphthyridin-4-ol (2.15 g) and phosphorus oxychloride (25 ml) were heated at 60° C. for 1 hour to give 5-chloro-3-ethoxy-2-methyl-1,8-naphthyridine, m.p. 164° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05780482
Source datasetuspto-grants-1998_07
ORD IDord-25988206e5f9415bbc5456862e98ddac
Source noteuspto-grants-1998_07