Thermal Removal of Boc-Protecting Groups During Preparation of Open-Chain Polyamines
作者:Krzysztof E. Krakowiak、Jerald S. Bradshaw
DOI:10.1080/00397919608003822
日期:1996.11
Per-N-tosylated 3,8-diaza-1,10-decanediamine (9), 4,9-diaza-1,12-dodecanediamine (spermine) (10) and 3,6,9,14,17,20-hexaaza-1,22-docosanediamine (11) were prepared by treating mono-BOG-protected, per-N-tosylated 1,2-ethanediamine (5), 1,3-propanediamine (6) and triethylenetetraamine (7), respectively, with 1,4-dibromobutane and removing the BOG-protecting groups at 100-120 degrees C.