Patent ID: 7563889
Filing Date: 2009-07-21
Classification: C07D

Abstract:
1. A process for preparing 3,3,7,7-tetrakis(difluoramino) octahydro-1,5-diazocinium salt of the structure (C) comprising: providing a tetrahydro-1,5-disulfonyl-1,5-diazocine-3,7(2H,6H)-dione of the structure (A) reacting said tetrahydro-1,5-disulfonyl-1,5-diazocine-3,7(2H,6H)-dione with a difluoraminating acid selected from the group consisting of a mixture of difluoramine and difluorosulfamic acid in sulfuric acid, a difluorosulfamic acid-sulfuric acid mixture, a fluorosulfonic acid, a perfluoroalkanesulfonic acid, and a perfluoroarenesulfonic acid, to form a first mixture of reaction products one of which has the structure (B)  and reacting said first mixture with a superacid free of nitrating species and having a H