The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 15, 2009
Filed:
Dec. 10, 2004
Robert D. Chapman, Ridgecrest, CA (US);
Thomas J. Groshens, Ridgecrest, CA (US);
Robert D. Chapman, Ridgecrest, CA (US);
Thomas J. Groshens, Ridgecrest, CA (US);
The United States of America as represented by the Secretary of the Navy, Washington, DC (US);
Abstract
A novel reaction scheme is presented for making a 3,3,7,7-tetrakis(difluoramino)octahydro-1,5-diazocinium salt, such as HNFX, from a tetrahydro-1,5-diazocine-3,7(2H,6H)-dione that does not employ N-nitrolysis,—but that instead requires protolytic N-deprotection, or protolytic denosylation, (i.e., the nosyl N-protecting group is replaced with protons, forming the corresponding protonated amine or ammonium derivative). In summary, the present method subjects a suitably N-protected dione to difluoramination followed by protolytic N-deprotection by addition of a superacid and subsequent nitration utilizing an electrophilic nitrating agent to yield the diazocinium salt.