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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 545655Generated: November 1, 2026

4-Azido-6-methyl-2H-pyran-2-one → 2H-Pyran-2-one,4-amino-6-methyl-(9CI)

https://huagongshe.com/reaction/545655

Reaction equation

Participants

RoleNameHCIDCharge
Reactant4-Azido-6-methyl-2H-pyran-2-oneHCID 15499478—
ReactantHCID 178418361HCID 178418361—
CatalystPalladiumHCID 23938—
SolventEthanolHCID 702—
Product2H-Pyran-2-one,4-amino-6-methyl-(9CI)HCID 11062385101.4%

Reaction Steps

To a 0.310 g (2.05 mmol) of 38 and 0.031 g of 10% Pd/C in 10 mL of ethanol was maintained under 1 atm (a ballonn) of hydrogen gas for 1 hour. The reaction mixture was then filtered through Celite, and ethanol of the filtrate was removed through rotary evaporation to give 0.260 g of 39 (100% yield). 1H NMR δ 5.56 (s, 1H, C3H), 5.12 (s, 1H, C5H), 4.45 (s, 2H, NH2), 2.20 (s, Me); 13C NMR δ 163.6 (s, C2), 161.3 (s), 98.6 (d, C5), 80.4 (d, C3), 19.5 (q, Me).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07935726B1
Source datasetuspto-grants-2011_05
ORD IDord-082d5b9906584075be4f6b1164e8dc2b
Source noteuspto-grants-2011_05