Benzyl chloroformate → HCID 86688242, compound

Participants

Reaction Steps

To a solution of 18.5 g (82.0 mmol) 3,3-dimethyl-piperazine-1-carboxylic acid tert-butyl ester in 150 mL DCM at RT was added 30.0 mL (174 mmol) DIPEA. The mixture was cooled with ice and a solution of 14.0 mL (93.2 mmol) benzyl chloroformate in 60 mL DCM was added dropwise. The reaction mixture was stirred at RT over night and quenched with saturated aqueous sodium bicarbonate solution. The product was extracted with DCM. The organic layers were combined, dried over sodium sulfate and concentrated in vacuo.

Provenance & Evidence