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TERT-BUTYL 4-(2-TERT-BUTOXY-2-OXOETHYL)PIPERAZINE-1-CARBOXYLATE synthesis

2synthesis methods
-

Yield:180576-04-9 97%

Reaction Conditions:

Stage #1: acetic acid tert-butyl esterwith bis(2,2,6,6-tetramethyl-1-piperidyl)zinc in toluene at 20; for 1 h;Microwave irradiation;
Stage #2: tert-butyl 4-(benzoyloxy)piperazine-1-carboxylatewith [2,2]bipyridinyl;copper dichloride in tetrahydrofuran;toluene at 20; for 1 h;Microwave irradiation;

References:

McDonald, Stacey L.;Wang, Qiu [Chemical Communications,2014,vol. 50,# 19,p. 2535 - 2538] Location in patent:supporting information