发明名称 Preparation of bis-(1(2)H-tetrazol-5-yl)-amine monohydrate
摘要 A process of preparing bis-(1(2)H-tetrazol-5-yl)-amine monohydrate is provided including combining a dicyanamide salt, an azide salt and water to form a first reaction mixture, adding a solution of a first strong acid characterized as having a pKa of less than about 1 to said first reaction mixture over a period of time characterized as providing a controlled reaction rate so as to gradually form hydrazoic acid without loss of significant quantities of hydrazoic acid from the solution while heating the first reaction mixture at temperatures greater than about 65° C., heating the resultant reaction mixture at temperatures greater than about 65° C. for a period of time sufficient to substantially completely form a reaction product, treating the reaction product with a solution of a second strong acid to form a product of bis-(1(2)H-tetrazol-5-yl)-amine monohydrate, and, recovering the bis-(1(2)H-tetrazol-5-yl)-amine monohydrate product.
申请公布号 US6570022(B2) 申请公布日期 2003.05.27
申请号 US20010957938 申请日期 2001.09.21
申请人 THE REGENTS OF THE UNIVERSITY OF CALIFORNIA 发明人 NAUD DARREN L.;HISKEY MICHAEL A.
分类号 C07D257/06;(IPC1-7):C07D403/12 主分类号 C07D257/06
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