Electrophilic amination of amino acids with N-boc-oxaziridines: Efficient preparation of N-orthogonally diprotected hydrazino acids and piperazic acid derivatives
... Journal of ... f Mixture of the two diastereomeric sulfoxides. g The product was not recrystallized. h See ref 22. Electrophilic amination of benzyl amino acids 6 used N-Boc-3-(trichloromethyl) oxaziridine 7, which was easily prepared on a large scale (75 g) in two steps from chloral. ...
