Crystal structures of three 3-chloro-3-methyl-2,6-di­aryl­piperidin-4-ones

Arulraj R.; Sivakumar S.; Kaur M.; Thiruvalluvar A.; Jasinski J.P.

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Crystal structures of three 3-chloro-3-methyl-2,6-diarylpiperidin-4-ones

机译：三个3-氯-3-甲基-2,6-二芳基哌啶-4-酮的晶体结构

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The syntheses and crystal structure of 3-chloro-3-methyl-r-2,c-6-diphenylpiperidin-4-one, C18H18ClNO, (I), 3-chloro-3-methyl-r-2,c-6-di-p-tolylpiperidin-4-one, C20H22ClNO, (II), and 3-chloro-3-methyl-r-2,c-6-bis(4-chlorophenyl)piperidin-4-one, C18H16Cl3NO, (III), are described. In each structure, the piperidine ring adopts a chair conformation and dihedral angles between the mean planes of the phenyl rings are 58.4 (2), 73.5 (5) and 78.6 (2)° in (I), (II) and (III), respectively. In the crystals, molecules are linked into C(6) chains by weak N—H⋯O hydrogen bonds and C—H⋯π interactions are also observed.

机译：3-氯-3-甲基-r-2，c-6-二苯基哌啶-4-酮，C18H18ClNO，（I），3-氯-3-甲基-r-2，c-6-的合成及晶体结构di-p-tolylpiperidin-4-one，C20H22ClNO，（II）和3-chloro-3-methyl-r-2，c-6-bis（4-chlorophenyl）piperidin-4-one，C18H16Cl3NO，（III）进行说明。在每种结构中，哌啶环均具有椅子构型，并且在（I），（II）和（III）中苯环的平均平面之间的二面角分别为58.4°（2），73.5°（5）和78.6°（2）°。，分别。在晶体中，分子通过弱的N-H⋯O氢键连接到C（6）链中，并且还观察到C-H⋯π相互作用。

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《Acta Crystallographica Section E: Crystallographic Communications》 |2017年第2期|共5页
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Arulraj R.; Sivakumar S.; Kaur M.; Thiruvalluvar A.; Jasinski J.P.;
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机译：三种3-氯-3-甲基-2,6-二芳基哌啶-4-酮的晶体结构

Crystal structures of three 3-chloro-3-methyl-2,6-di­aryl­piperidin-4-ones

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Crystal structures of three 3-chloro-3-methyl-2,6-diarylpiperidin-4-ones