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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1905656Generated: October 30, 2026

Pyridine → HCID 20162879, compound

https://huagongshe.com/reaction/1905656

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPyridineHCID 1049—
ReactantAcetic-formic anhydrideHCID 75269—
ReactantHCID 20162869HCID 20162869—
SolventDichloromethaneHCID 6344—
ProductHCID 20162879HCID 2016287997.3%

Reaction Conditions

Temperature0 °C

Reaction Steps

The amine (42) (490 mg) in dry dichloromethane was cooled to 0° C. and treated with pyridine (211 mg) followed by formic-acetic anhydride (117 mg). The mixture was stirred at 0° C. for 5 minutes then allowed to warm to room temperature. After 1/2 hour the solvent was evaporated and the residue dried in vacuo. The solid was triturated with dry ether, filtered off, and washed with more ether before drying in vacuo to give the product (43) (510 mg) as a white solid.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04647558
Source datasetuspto-grants-1987_03
ORD IDord-0042088f1e2e4e57ab2205a1f842848c
Source noteuspto-grants-1987_03