Acta Cryst. (2008). E64, o1054  [ doi:10.1107/S1600536808013482 ]

tert-Butyl 2-(dihydroxyboryl)pyrrole-1-carboxylate

T. Klis and J. Serwatowski

Abstract: In the title compound, C₉H₁₄BNO₄, the carbonyl and boronic acid groups are essentially coplanar with the pyrrole ring and the boronic acid group has an exo-endo conformation. The exo-oriented OH is engaged in an intramolecular O-HO interaction, while the endo-oriented one is involved in intermolecular hydrogen bonding to form centrosymmetric dimers. A supramolecular assembly is achieved through interactions involving the tert-butyl groups, forming infinite chains along the crystallographic b axis. There are, in addition, face-to-face and center-to-edge stacking interactions [distance between the pyrrole ring centroid and an N atom from a neighbouring molecule = 3.369 (8) Å].

Online 10 May 2008

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