Title of article :
Crystal structures of 4-bromo-2-formyl-1-tosyl-1H-pyrrole, (E)-4-bromo-2-(2-nitrovinyl)-1-tosyl-1H-pyrrole and 6-(4-bromo-1-tosylpyrrol-2-yl)-4,4-dimethyl-5-nitrohexan-2-one
Author/Authors :
Kingsbury, Christopher J. Chair of Organic Chemistry - School of Chemistry - Trinity Biomedical Science Institute, Ireland , Sample, Harry C. Chair of Organic Chemistry - School of Chemistry - Trinity Biomedical Science Institute, Ireland , Senge, Mathias O. Chair of Organic Chemistry - School of Chemistry - Trinity Biomedical Science Institute, Ireland
Abstract :
The crystal structures of three intermediate compounds in the synthesis of 8-bromo-2,3,4,5-tetrahydro-1,3,3-trimethyldipyrrin are reported; 4-bromo-2-formyl-1-tosyl-1H-pyrrole, C12H10BrNO3S, (E)-4-bromo-2-(2-nitrovinyl)-1-tosyl-1H-pyrrole, C13H11BrN2O4S, and 6-(4-bromo-1-tosylpyrrol-2-yl)-4,4-dimethyl-5-nitrohexan-2-one, C19H23BrN2O5S. The compounds show multitudinous intermolecular C—H⋯O interactions, with bond distances and angle consistent in the series and within expectations, as well as varied packing types. The merits of collecting data beyond the standard resolution usually reported for small molecules are discussed.
Keywords :
crystal structure , pyrrole , high-resolution , chemical intermediates
Journal title :
Acta Crystallographica Section E: Crystallographic Communications
