发明授权
- 专利标题： Synthesis of diaminodinitropyridine
- 专利标题（中）： 二氨基二硝基吡啶的合成
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申请号： US11986877申请日： 2007-11-27
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公开(公告)号： US08115007B2公开(公告)日： 2012-02-14
- 发明人: Hasan Dindi , James Arnold Schultz
- 申请人： Hasan Dindi , James Arnold Schultz
- 申请人地址： US DE Wilmington
- 专利权人： E. I. du Pont de Nemours and Company
- 当前专利权人： E. I. du Pont de Nemours and Company
- 当前专利权人地址： US DE Wilmington
- 主分类号： C07C211/00
- IPC分类号： C07C211/00 ; C07D213/72
摘要：
A process for the preparation of diaminodinitropyridine or diaminodinitrobenzene by contacting an aminopyridine or aminobenzene with oleum and nitric acid, wherein the improvement comprises adding at least about 1% molar excess of nitric acid, based upon the aminopyridine or aminobenzene with stirring for at least two hours to form first the intermediate sulfonic acid, and then diaminodinitropyridine or diaminodinitrobenzene, and use of such products in the preparation of rigid rod polymers is disclosed.
公开/授权文献
- US20090137814A1 Synthesis of diaminodinitropyridine 公开/授权日：2009-05-28