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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1709321Generated: October 29, 2026

Hydrochloric Acid → HCID 10620699, compound

https://huagongshe.com/reaction/1709321

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantAcetic AnhydrideHCID 7918—
ReactantHCID 11792363HCID 11792363—
SolventPyridineHCID 1049—
ProductHCID 10620699HCID 10620699—

Reaction Steps

A mixture of 0.99 g of 5-[(2,4-dioxothiazolidin-5-yl)methyl]-2-(4-aminobenzyl)benzoxazole, 2 ml of acetic anhydride and 10 ml of pyridine is stirred at room temperature overnight. 10% Hydrochloric acid is added thereto, and the solution is extracted with ethyl acetate. The extract is washed with water, dried and evaporated to remove the solvent. The residue is recrystallized from ethyl acetate, whereby 0.56 g of 5-[(2,4-dioxothiazolidin-5-yl)methyl]-2-(4-acetamidobenzyl)benzoxazole is obtained.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04948900
Source datasetuspto-grants-1990_08
ORD IDord-f22c7aacfceb4fd6b2649ce93deb33e6
Source noteuspto-grants-1990_08