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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1359322Generated: November 1, 2026

Acetic Anhydride → HCID 18182484, compound

https://huagongshe.com/reaction/1359322

Reaction equation

Participants

RoleNameHCIDCharge
ReactantAcetic AnhydrideHCID 7918—
ReactantHCID 18182406HCID 18182406—
SolventPyridineHCID 1049—
ProductHCID 18182484HCID 1818248453.8%

Reaction Steps

A mixture of 0.87 g of 3-benzyloxy-2-[(4-methoxyphenyl)hydroxymethyl]-6-methylpyridine, 2.5 ml of acetic acid anhydride and 20 ml of pyridine was heated under stirring for 4 hours in an oil bath kept at 120° C. After the reaction solution was evaporated, water was added thereto. The mixture was extracted with ethyl acetate, and the organic phase was washed with brine, dried over anhydrous magnesium sulfate and concentrated. To the residue were added 20 ml of methanol, 10 ml of tetrahydrofuran and a catalytic amount of 10% palladium/carbon, followed by stirring for 10 hours in a hydrogen atmosphere. After the catalyst was filtered off, the filtrate was concentrated. Then, the crystals were washed with diethyl ether, to give 320 mg of the target compound.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06599917B1
Source datasetuspto-grants-2003_07
ORD IDord-fe98fd26e5e84e4a957a8e4671a961bd
Source noteuspto-grants-2003_07