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(2RS,5RS,6RS)-Ethyl 4-hydr­oxy-2,6-di-p-tolyl-5-p-tolyl­sulfanyl-1,2,5,6-tetra­hydro­pyridine-3-carboxyl­ate

✍ Scribed by Suresh, J. ;Kumar, R. Suresh ;Perumal, S. ;Natarajan, S.

Publisher
International Union of Crystallography
Year
2007
Tongue
English
Weight
161 KB
Volume
63
Category
Article
ISSN
1600-5368

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✦ Synopsis

The polysubstituted piperidine enol ring in the title compound, C~29~H~31~NO~3~S, adopts a twisted half-chair conformation. The crystal structure is stabilized by van der Waals and weak C—H...π interactions. An intramolecular O—H...O interaction generates an S(6) graph-set motif.

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(2RS,5SR,6SR)-Ethyl 2,6-bis­(4-fluoro­ph
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✍ Suresh, J. ;Kumar, R. Suresh ;Perumal, S. ;Natarajan, S. 📂 Article 📅 2007 🏛 International Union of Crystallography 🌐 English ⚖ 280 KB

The title compound, C~26~H~23~F~2~NO~3~S, a polysubstituted piperidine enol, adopts a twisted half-chair conformation. The crystal structure is stabilized by N—H...F, C—H...O and weak C—H...π interactions. An intramolecular O—H...S interaction generates an __S__(5) graph-set motif.

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The title compound, C 18 H 24 O 2 , was synthesized to study the interaction of the two enantiomers in the solid state. The resultant racemate is made up of carboxylic acid RS molecules which are dimerized through their carboxyl groups by O-HÁ Á ÁO hydrogen bonds, forming R 2 2 (8) rings. The dimers

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Single-crystal X-ray study T = 173 K Mean '(C±C) = 0.002 A Ê R factor = 0.033 wR factor = 0.089 Data-to-parameter ratio = 12.7 For details of how these key indicators were automatically derived from the article, see http://journals.iucr.org/e.

(4RS,6SR)-2-Amino-6-phenyl-4-p-tolyl-5,6
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✍ Wan, Jie-Ping ;Wang, Dan-Hua ;Xu, Hui ;Sun, Cui-Rong 📂 Article 📅 2006 🏛 International Union of Crystallography 🌐 English ⚖ 235 KB

The title compound, C 17 H 19 N 2 S + ÁCl À , is a 5,6-dihydro-4H-1,3thiazine derivative in which two benzene rings replace H atoms at positions 4 and 6 of the central ring, which adopts a slightly twisted half-chair conformation at 173 K. The crystal structure is stabilized by weak intermolecular N