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.:

US 8853220 B1

PDF
Full Text
Expired
Date of Patent:
Oct. 07, 2014

Filed:

Feb. 25, 2011
Applicants:

Alfred G. Stern, Upper Marlboro, MD (US);

Craig J. Diamond, Bryans Road, MD (US);

Inventors:

Alfred G. Stern, Upper Marlboro, MD (US);

Craig J. Diamond, Bryans Road, MD (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07D 487/08 (2006.01); C07D 487/18 (2006.01);
U.S. Cl.
CPC ...
C07D 487/18 (2013.01); C07D 487/08 (2013.01);
Abstract

The present invention relates to methods for synthesizing energetic compounds and intermediates thereof. Specifically, the present invention relates to methods for synthesizing adamantanes and intermediates that are useful in such synthesis. Synthesized intermediates are useful in the synthesis of bicyclic and tricyclic substituted adamantanes. Examples of various intermediates are: acyclic 2-nitromalonaldehyde intermediates, 2,6,9-tri-substituted-4,8-dinitro-2,6,9-triazabicyclo[3.3.1]nona-3,7-dienes and 2,6-dinitro-4,8,9,10-tetra-aza-4,8,9,10-tetra-substituted adamantanes. Intermediates synthesized according to the methods of the present invention are useful toward the synthesis of tetraaza-adamantanes, which can serve as precursors to potentially superior new high-energy-density compounds (HEDCs). The tricyclic intermediate compound has a structure of Formula III:


Find Patent Forward Citations

Stern, Alfred. (2014). Synthesis of 2,6,9-tri-substituted-4,8-dinitro-2,6,9-triazabicyclo[3.3.1]nona-3,7-diene intermediates toward the preparation of polyaza-adamantanes (U.S. Patent No. 8853220). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/8853220

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