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ChemicalBook CAS DataBase List 1-Boc-3,3-dimethylpiperazine

1-Boc-3,3-dimethylpiperazine synthesis

2synthesis methods
-

Yield: 96%

Reaction Conditions:

in dichloromethane at 0 - 20; for 4 h;

Steps:

4.C
To a solution of 2,2-dimethylpiperazine (400 mg) in dichloromethane (20 mL) at 0° C. was added di-tert-butyl dicarbonate (766 mg). The reaction was stirred at room temperature for 4 h and then quenched with water (20 mL) and extracted into dichloromethane (2*40 mL). The combined organics were washed with saturated aqueous brine solution (40 mL), dried (MgSO4) and concentrated to give 3,3-diemethyl-piperazine-1-carboxylic acid tert-butyl ester as a white solid (720 mg, 96%).

References:

Piramed Limited;Genentech, Inc. US2008/76758, 2008, A1 Location in patent:Page/Page column 90