Phloroglucinol → Trinitrophloroglucinol

Beteiligte Stoffe

Reaktionsschritte

One method of synthesizing TATB from phloroglucinol is described in GB 2355715. The phloroglucinol is nitrated using sodium nitrite and nitric acid, forming trinitrophloroglucinol (“TNPG”), which is also known as 1,3,5-trihydroxy-2,4,6-trinitrobenzene. The nitric acid is added sequentially or in multiple additions. When cooled, a solid is produced, which is filtered, washed with 3 M hydrochloric acid (“HCl”), and dried, yielding a solid product that is a monohydrate of TNPG. The monohydrate of TNPG is a free-flowing solid. The TNPG is alkoxylated using a trialkyl orthoformate, such as triethyl orthoformate (“TEOF”), forming 1,3,5-triethoxy-2,4,6-trinitrobenzene (“TETNB”). The TNPG and TEOF are reacted with heat, forming TETNB, ethanol, and ethyl formate. The ethanol and ethyl formate are removed by distillation. The solution of TETNB is concentrated, yielding TETNB as a solid, which is recrystallized from ethanol. The purified TETNB is aminated using liquid ammonia, filtered, washed with N-methylpyrrolidinone and methanol, and dried, yielding crystals of the TATB. The TATB synthesis utilizes multiple drying and isolation acts to produce solid products of TNPG, TETNB, and TATB.

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