Synthesis and Molecular Structure of tert-Butyl 3-oxo-2-oxa-5-azabicyclo[2.2.2]octane-5-carboxylate

Figure 1

Synthesis of the starting material 5-hydroxypipecolic acid (left) and tert-butyl 3-oxo-2-oxa-5-azabicycloheptane-5-carboxylate (right).