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Crystal structures of two new 3-(2-chloro-eth-yl)-r(2),c(6)-diarylpiperidin-4-ones. 2018
K Rajkumar, and
S Sivakumar, and
R Arulraj, and
Manpreet Kaur, and
Jerry P Jasinski, and
A Manimekalai, and
A Thiruvalluvar
Research and Development Centre, Bharathiar University, Coimbatore 641 046, Tamilnadu, India.
The syntheses and crystal structures of 3-(2-chloro-eth-yl)-r-2,c-6-di-phenyl-piperidin-4-one, C19H20ClNO, (I), and 3-(2-chloro-eth-yl)-r-2,c-6-bis-(4-fluoro-phen-yl)piperidin-4-one, C19H18ClF2NO, (II), are described. The piperidone ring adopts a chair conformation in (I), whereas a slightly distorted chair conformation is formed in (II). The dihedral angle between the mean plane of the phenyl rings is 59.1 (1)° in (I) and 76.1 (1)° in (II). The crystal packing features weak inter-molecular N-H⋯O hydrogen bonds in each structure.
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