(R)-4-(4-Aminophenyl)-2,2,4-trimethylchroman and (S)-4-(4-aminophenyl)-2,2,4-trimethylthiachroman

Frampton, C.S., MacNicol, D.D. and Wilson, D.R. (2011) (R)-4-(4-Aminophenyl)-2,2,4-trimethylchroman and (S)-4-(4-aminophenyl)-2,2,4-trimethylthiachroman. Acta Crystallographica. Section C: Crystal Structure Communications, 67(5), o188-o191. (doi: 10.1107/S0108270111012157)

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Publisher's URL: http://dx.doi.org/10.1107/S0108270111012157


The title compounds, C<sub>18</sub>H<sub>21</sub>NO and C<sub>18</sub>H<sub>21</sub>NS, in their enantiomerically pure forms are isostructural with the enantiomerically pure 4-(4-hydroxyphenyl)-2,2,4-trimethylchroman and 4-(2,4-dihydroxyphenyl)-2,2,4-trimethylchroman analogues and form extended linear chains via N-H···O or N-H···S hydrogen bonding along the [100] direction. The absolute configuration for both compounds was determined by anomalous dispersion methods with reference to both the Flack parameter and, for the light-atom compound, Bayesian statistics on Bijvoet differences.

Item Type:Articles
Glasgow Author(s) Enlighten ID:MacNicol, Dr David
Authors: Frampton, C.S., MacNicol, D.D., and Wilson, D.R.
Subjects:Q Science > QD Chemistry
College/School:College of Science and Engineering > School of Chemistry
Journal Name:Acta Crystallographica. Section C: Crystal Structure Communications
Publisher:Wiley-Blackwell Publishing, Inc.
ISSN (Online):1600-5759
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