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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 331145Generated: October 30, 2026

Lawesson's reagent → (R)-6,6-difluoro-5-(2-fluoro-5-(tetrahydro-2H-pyran-4-yl)phenyl)-5,7,7-trimethyl-1,4-oxazepan-3-thione

https://huagongshe.com/reaction/331145

Reaction equation

Participants

RoleNameHCIDCharge
ReactantLawesson's reagentHCID 87949—
Reactant(R)-6,6-difluoro-5-(2-fluoro-5-(tetrahydro-2H-pyran-4-yl)phenyl)-5,7,7-trimethyl-1,4-oxazepan-3-oneHCID 68380531—
Solvent1,4-DioxaneHCID 31275—
Product(R)-6,6-difluoro-5-(2-fluoro-5-(tetrahydro-2H-pyran-4-yl)phenyl)-5,7,7-trimethyl-1,4-oxazepan-3-thioneHCID 8667188181%

Reaction Steps

The reaction of (R)-6,6-difluoro-5-(2-fluoro-5-(tetrahydro-2H-pyran-4-yl)phenyl)-5,7,7-trimethyl-1,4-oxazepan-3-one (244 mg, 657 μmol) with Lawesson's reagent (266 mg, 657 μmol) in 1,4-dioxane (20 ml) yielded the (R)-6,6-difluoro-5-(2-fluoro-5-(tetrahydro-2H-pyran-4-yl)phenyl)-5,7,7-trimethyl-1,4-oxazepan-3-thione (205 mg, 81% yield) as a white foam. MS (ISP): m/z=388.2 [M+H]+.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08877744B2
Source datasetuspto-grants-2014_11
ORD IDord-fe1d8739c07545e69cb995868c9fac9a
Source noteuspto-grants-2014_11