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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2079769Generated: October 31, 2026

Benzyl Chloride → HCID 58367486, compound

https://huagongshe.com/reaction/2079769

Reaction equation

Participants

RoleNameHCIDCharge
ReactantBenzyl ChlorideHCID 7503—
ReactantTriethylamineHCID 8471—
Reactant1-tert-Butyl 2-methyl (2S)-piperazine-1,2-dicarboxylateHCID 7016513—
SolventAcetonitrileHCID 6342—
ProductHCID 58367486HCID 5836748652%

Reaction Conditions

Temperature71 °C

Reaction Steps

To a dry 100.0 ml one necked round bottom flask equipped with a stirring bar is added (S)-1-N-Boc-piperazine-2-carboxylic methyl ester (800 mg, 3.275 mmol) under N2. Anhydrous acetonitrile (20 ml) is added to the flask followed by benzyl chloride (0.38 ml, 3.275 mmol) and triethylamine (1.28 ml, 9.17 mmol). Condenser is then put on to the flask and the reaction mixture is heated at 71° C. for 20 minutes. The reaction mixture is allowed to come to room temperature and concentrated under reduced pressure. It is then diluted with dicholoromethane and washed with water and brine. The organic layer is dried over Na2SO4, filtered and concentrated under reduced pressure. The crude compound is flash column purified using hexane and ethylacetate gradient solvent system to yield 570 mg (52%) of the desired product.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07932255B2
Source datasetuspto-grants-2011_04
ORD IDord-24fa5f899c16441280329e2f68e43806
Source noteuspto-grants-2011_04