E. Zang et Pj. Sadler, A CONVENIENT SYNTHESIS OF N-15-LABELED DIETHYLENETRIAMINE [(N-15)DIEN] AND ETHYLENEDIAMINE [(N-15)EN], Synthesis, (4), 1997, pp. 410
(N-15)Dien and (N-15)en have been synthesized from N-15-glycine via am
idation and reduction reactions with trityl as amino-protective group.
The method is economic, mild and easy to handle.