公开(公告)号：US11434211B2

公开(公告)日：2022-09-06

申请号：US17221863

申请日：2021-04-05

Applicant: Purdue Research Foundation

Inventor： Davin Glenn Piercey ,  Timothy D. Manship ,  Dawson Michael Smith

IPC: C07D257/06

Abstract: This disclosure shows the ability of a readily-available oxidizer to achieve oxidation of 5-amino-1H-tetrazole (5-AT) to 5-nitrotetrazole (5-NT) in high yields in a single pot synthesis. This strategy reduces the synthesis of this important energetic material down to a single step and eliminates highly sensitive diazonium and copper salt primary explosive intermediates. The overall yield of this process is 48-53% and the resultant aqueous solution of product effectively used for the preparation of nitrotetrazole-containing primary explosive DBX-1. Unlike current methods of nitrotetrazole preparation, the novel method is entirely solution-based and prepares a final solution of sodium nitrotetrazolate, never once needing to handle energetic intermediates or products, making it a much safer method of nitrotetrazole preparation.

公开(公告)号：US20220135530A1

公开(公告)日：2022-05-05

申请号：US17221863

申请日：2021-04-05

Applicant: Purdue Research Foundation

Inventor： Davin Glenn Piercey ,  Timothy D. Manship ,  Dawson Michael Smith

IPC: C07D257/06

Abstract: This disclosure shows the ability of a readily-available oxidizer to achieve oxidation of 5-amino-1H-tetrazole (5-AT) to 5-nitrotetrazole (5-NT) in high yields in a single pot synthesis. This strategy reduces the synthesis of this important energetic material down to a single step and eliminates highly sensitive diazonium and copper salt primary explosive intermediates. The overall yield of this process is 48-53% and the resultant aqueous solution of product effectively used for the preparation of nitrotetrazole-containing primary explosive DBX-1. Unlike current methods of nitrotetrazole preparation, the novel method is entirely solution-based and prepares a final solution of sodium nitrotetrazolate, never once needing to handle energetic intermediates or products, making it a much safer method of nitrotetrazole preparation.