专利检索 ap:("HERAKLES" OR "EURENCO") AND inv:"Guy Cagnon" 第 1 页

1.

发明授权
Method for obtaining solutions of OTA in a concentrated sulfuric acid medium; said solutions; and method for preparing ONTA 有权

公开(公告)号：US09676733B2

公开(公告)日：2017-06-13

申请号：US14782889

申请日：2014-04-04

申请人： HERAKLES , EURENCO

发明人： Grégoire Herve , Guy Jacob , Guy Cagnon , Jean-Marc Bouchez

IPC分类号： C07D249/12 , C07D249/14

CPC分类号： C07D249/12 , C07D249/14

摘要： A method for obtaining solutions that contain 1,2,4-triazole-5-one (OTA) in concentrated sulphuric acid, includes using 3-amino-1,2,4-triazole (ATA) as a precursor of OTA. There is also provided a method for preparing 3-nitro-1,2,4-triazole-5-one (4) (ONTA) from the solutions.