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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1730277Generated: November 1, 2026

Pyridine → HCID 68141288, compound

https://huagongshe.com/reaction/1730277

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPyridineHCID 1049—
ReactantAcetic AnhydrideHCID 7918—
ReactantAmmonium HydroxideHCID 14923—
ReactantHCID 68140900HCID 68140900—
SolventWaterHCID 962—
SolventEthyl AcetateHCID 8857—
ProductHCID 68141288HCID 68141288—

Reaction Steps

A solution 1 g. of 2,3-dihydro-6-methyl-8-hydroxymethylergoline in 50 ml. of pyridine containing 25 ml. of acetic anhydride was stirred at 25° C. for 15 hours. The reaction mixture was added to 100 ml. of water, and the pH of the aqueous layer was adjusted to 10 by the addition of ammonium hydroxide. The aqueous alkaline reaction mixture was extractedwith ethyl acetate, and the organic extracts were combined, washed with water, dried, and the solvent was removed therefrom under reduced pressureto provide an oil. The oil was crystallized from methanol, affording 1-acetyl-2,3-dihydro-6-methyl-8-acetoxymethyl-ergoline, M.P. 172°-177° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS03992385
Source datasetuspto-grants-1976_11
ORD IDord-4bb3b51ca5174dc3bd6b14f4a197becc
Source noteuspto-grants-1976_11