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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 235809Generated: October 29, 2026

Benzoic Acid → HCID 20217498, compound

https://huagongshe.com/reaction/235809

Reaction equation

Participants

RoleNameHCIDCharge
ReactantBenzoic AcidHCID 243—
ReactantAcetonitrileHCID 6342—
ReactantHCID 20217515HCID 20217515—
SolventWaterHCID 962—
ProductHCID 20217498HCID 2021749873.8%

Reaction Conditions

Temperature4 °C

Reaction Steps

The procedure is similar to that described in Example 1, but starting with benzoic acid (11 g), N,N'carbonyldiimidazole (16.2 g) and 2-amino-7-(4-methoxyphenoxy)-1,8-naphthyridine (26.7 g). The product produced by precipitation in water (30.8 g; m.p. approximately 110° C.) is dissolved in boiling acetonitrile (150 cc). After 3 hours' cooling at 4° C., the crystallised solid is separated by filtration, washed with acetonitrile (2×5 cc) and dried at 50° C. under reduced pressure (0.067 kPa). N-[7-(4-methoxyphenoxy)-1,8-naphthyridin-2-yl]benzamide (24.7 g) is produced, m.p. 171° C. 2-Amino-7-(4-methoxyphenoxy)-1,8-naphthyridine can be prepared in the following manner:

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04642308
Source datasetuspto-grants-1987_02
ORD IDord-93a5330320054d4a9a1285a11a47e53e
Source noteuspto-grants-1987_02