Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 632056Generated: October 30, 2026

Lawesson's reagent → HCID 54281150, compound

https://huagongshe.com/reaction/632056

Reaction equation

Participants

RoleNameHCIDCharge
ReactantLawesson's reagentHCID 87949—
ReactantN~2~-(tert-Butoxycarbonyl)-L-leucinamideHCID 7201299—
SolventTolueneHCID 1140—
ProductHCID 54281150HCID 54281150140%

Reaction Conditions

Temperature90 °C

Reaction Steps

A mixture of (S)-tert-butyl 1-amino-4-methyl-1-oxopentan-2-ylcarbamate (1.8 g, 8 mmol) and Lawesson's reagent (1.58 g, 4 mmol) in toluene (20 mL) was stirred at 90° C. for 2.5 h. After removal of the solvent under reduced pressure, the residue was purified by column chromatography (silica gel, 30 g, ethyl acetate/MeOH, 20/1) to yield the title compound (1.38 g, 72%) as yellow solid; MS: m/e 269.2 [M+H]+.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09321727B2
Source datasetuspto-grants-2016_04
ORD IDord-472027e1e71543d5b26988fc0278be4f
Source noteuspto-grants-2016_04