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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1885494Generated: October 31, 2026

Acetic Anhydride → 5-acetamido-2-(N-benzyloxycarbonylamino)phenol

https://huagongshe.com/reaction/1885494

Reaction equation

Participants

RoleNameHCIDCharge
ReactantAcetic AnhydrideHCID 7918—
Reactant5-Amino-2-(benzyloxycarbonylamino)phenolHCID 14745733—
Solvent1,4-DioxaneHCID 31275—
Product5-acetamido-2-(N-benzyloxycarbonylamino)phenolHCID 14745734—

Reaction Conditions

Temperature70 °C

Reaction Steps

0.6 mole (57 ml) of acetic anhydride is added dropwise to a solution of 0.6 mole (172 g) of 5-amino-2-(benzyloxycarbonylamino)phenol in 465 ml of dioxane heated to 70° C. After the reaction medium is cooled, the expected product precipitates. When recrystallized in 96° ethanol, it melts at 205° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05145483
Source datasetuspto-grants-1992_09
ORD IDord-40b5c779409548e6a896d002da09348e
Source noteuspto-grants-1992_09