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Synthesis of cholest-5-en-3-ol(3β)-3-[4-(2,2,2-trifluoroacetamido) benzoate] (ChTfAB) a thermotropic liquid crystalline material

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Title Synthesis of cholest-5-en-3-ol(3β)-3-[4-(2,2,2-trifluoroacetamido) benzoate] (ChTfAB) a thermotropic liquid crystalline material
 
Creator Zote, Santosh W
Navale, Dinesh N
Ranade, Prasanna B
Kulal, Dnyaneshwar K
Wagh, Swapnil J
Pansare, Amol
 
Subject DCC
DMAP
DSC
POM
Thermotropic
Cholesteric
Liquid Crystal
 
Description 755-760
The synthesis of cholest-5-en-3-ol(3β)-3-[4-(2,2,2-trifluoroacetamido)benzoate] (ChTfAB) is carried out by esterification
of cholesterol and p-nitrobenzoic acid using DCC, DMAP, followed by reduction of nitro group using SnCl2. The so formed
amino group is further N-acylated using trifluoroacetic anhydride. The newly synthesized compound is characterized using
IR and 1H NMR spectroscopic techniques. Its mesomorphic properties have been investigated using Differential Scanning
Colorimetry (DSC) and Polarising Optical Microscopy (POM). The thermal and phase behaviour studies reveal the
synthesized compound to be an enantiotropic, thermotropic liquid crystal. This synthesized compound overcomes the
problem of degrading at the melting temperature associated with one of the previously synthesized and reported steroidal
compound.
 
Date 2023-07-20T08:23:37Z
2023-07-20T08:23:37Z
2023-07
 
Type Article
 
Identifier 2583-1321 (Online); 0019-5103 (Print)
http://nopr.niscpr.res.in/handle/123456789/62312
https://doi.org/10.56042/ijc.v62i7.3736
 
Language en
 
Publisher NIScPR-CSIR,India
 
Source IJC Vol.62(07) [July 2023]