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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2260752Generated: October 30, 2026

Acetic Anhydride → HCID 4767934, compound

https://huagongshe.com/reaction/2260752

Reaction equation

Participants

RoleNameHCIDCharge
ReactantAcetic AnhydrideHCID 7918—
ReactantSyringaldehydeHCID 8655—
ReactantAcetylglycineHCID 10972—
ReactantSodium AcetateHCID 517045—
ProductHCID 4767934HCID 476793431.7%

Reaction Conditions

Temperature90 °C

Reaction Steps

A 1.8 g (9.88 mmol) of syringaldehyde, 1.4 g (12.0 mmol) of N-acetylglycine, 1 g (12.2 mmol) of sodium acetate and 5 ml of acetic anhydride were stirred at 120° C. for 6 hours. A precipitate was washed with water and ethanol in this order and dried under reduced pressure. To the product was added 80 ml of 0.1N hydrochloric acid, and the mixture was stirred at 90° C. for 1 hour. A crystal formed was washed with water and acetone in this order to give 880 mg (yield 31.7%) of objective αacetylamino-3,5-dimethoxy-4-hydroxycinnamic acid.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05478856
Source datasetuspto-grants-1995_12
ORD IDord-2f23e983c60a4576af9eb206b4d653da
Source noteuspto-grants-1995_12