ISSN:
1600-5368
Source:
Crystallography Journals Online : IUCR Backfile Archive 1948-2001
Topics:
Chemistry and Pharmacology
,
Geosciences
,
Physics
Notes:
The title compound (RS 1350), C11H9ClN4, was recently synthesized by a Smiles rearrangement of 1-[(5-chloro-2-nitrophenyl)sulfonyl]-1H-pyrrole-2-carbohydrazide or 1-(5-chloro-2-nitrophenyl)-1H-pyrrole-2-carbohydrazide in powdered iron–glacial acetic acid medium. From the crystallographic analysis, it is observed that, in the title compound, the benzimidazole moiety is planar and forms a dihedral angle of 3.8 (2)° with the pyrrole ring. The near planarity of the two rings indicates an extended conjugation.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1107/S1600536801010856
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