I is through the N- acyl protecting or N- guanidyl protection 1,4-butane diamine precursor 1,4 a process for the preparation of butane diamine

摘要

This invention 1,4 diamino butane [regards the new manner for the preparing DAB]. The generation at least by the living body catalytic converter of one N conservation precursive body of DAB is included to the manner due to this invention, one living body catalytic converter step is included at least. In addition as for this invention, being the preparation manner of DAB which at least includes one living body catalytic converter step, a) being the step which prepares the N conservation precursive body of DAB with the living body catalytic converter, step and b which make the living body catalytic converter reaction blend cause which contains the N conservation precursive body of DAB) it regards the manner which includes with the step which recovers the N conservation precursive body from the living body catalytic converter reaction blend and the step which converts c) N conservation precursive body to DAB. Further in details, as for this invention, at least one N conservation precursive body of DAB, N5 conservation ornithine, is chosen from the group which consists of N conservation DAB, and N conservation 4 amino butyl aldehyde, it regards the preparation manner of DAB.