Nitro derivatives of 1,3-dihydrobenzimidazol-2-one: I. Synthesis of N-nitrobenzimidazol-2-ones
摘要:
1,3,5,6-Tetranitro-2,3-dihydro-1H-benzimidazol-2-one, 1,5,6-trinitro-2,3-dihydro-1H-benzimidazol-2-one, and 1,4,5,6-tetranitro-2,3-dihydro-1H-benzimidazol-2-one were synthesized for the first time by nitration of 5,6-di- and 4,5,6-trinitro-2,3-dihydro-1H-benzimidazol-2-ones with concentrated nitric acid in acetic anhydride.
Electrophilic iodination: a gateway to high iodine compounds and energetic materials
作者:Deepak Chand、Chunlin He、Lauren A. Mitchell、Damon A. Parrish、Jean'ne M. Shreeve
DOI:10.1039/c6dt02438f
日期:——
A large number of iodine atoms can be introduced into a single molecule in a one-pot reaction using trifluoroperacetic acid-mediated electrophilic iodination methodology. The scope of this reaction was investigated extensively using several pyrazole substrates which resulted in nine polyiodo pyrazole compounds with iodine content as high as 80%. This synthetic methodology was also utilized successfully