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Lookup NU author(s): Emeritus Professor Bill CleggORCiD, Dr Mark Elsegood
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The title compound, C30H33NO6-1.5CHCl 3, a derivative of L-DOPA, forms chains in its crystal structure, via weak N - H⋯O=C hydrogen bonds involving the carbamate N - H and carbonyl groups of adjacent molecules, supported by N - H⋯O=C interactions of the same carbonyl. The staggered conformation about the C - C bond joining the dimethoxy-phenyl group to the chiral centre is similar to that in L-DOPA, but different from that in the iodo derivative from which the title compound was prepared. Extensive disorder of the chloroform solvent molecules, which could not be modelled by discrete atomic sites, prevents the confirmation of the absolute configuration of the main molecule on the basis of anomalous scattering effects of chlorine atoms, demonstrating a limitation of this otherwise useful technique. © 2003 International Union of Crystallography Printed in Great Britain - all rights reserved.
Author(s): Clegg W, Elsegood MRJ
Publication type: Article
Publication status: Published
Journal: Acta Crystallographica Section E: Structure Reports Online
Year: 2003
Volume: 59
Issue: 12
Pages: o1946-o1948
ISSN (electronic): 1600-5368
Publisher: Wiley-Blackwell
URL: http://dx.doi.org/10.1107/S1600536803025819
DOI: 10.1107/S1600536803025819
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