D. Maffre et al., SYNTHESIS OF TERT-BUTOXYCARBONYL-PROTECTED ALPHA-HYDRAZINO PHOSPHONICDIESTERS BY ELECTROPHILIC AMINATION WITH DI-TERT-BUTYL AZODICARBOXYLATE, Journal of chemical research. Synopses, (1), 1994, pp. 30-31
The synthesis of tert-butoxycarbonyl-protected alpha-hydrazino phospho
nic diesters 2, precursors of alpha-amino phosphonic acids, by electro
philic amination of phosphonates using di-tert-butyl azodicarboxylate
as a 'NH2+' synthon is described.