HPLC of Formula: 29682-15-3In 2019 ,《New pyridine based liquid crystalline esters with different terminal chains》 appeared in Journal of Molecular Structure. The author of the article were Karanlik, Gurkan; Ocak, Hale; Bilgin Eran, Belkiz. The article conveys some information:
The synthesis, structural and mesomorphic characterization of new pyridine-based Me esters carrying a n-alkoxy chain or 3,7-dimethyloctyloxy branched group at terminal I [R = C8H17, C10H21, C12H25, (4S)-4,8-dimethylnonyl, 4,8-dimethylnonyl] have been presented. The liquid crystalline properties of the new pyridine-based calamitic mols. have been investigated by polarized optical microscopy and differential scanning calorimetry. New compounds exhibit enantiotropic smectic A mesophase at a variable mesomorphic range depending on alkoxy chain length and branching at terminal. The presence of a branched terminal group in chiral or racemic form gives rise to a sharply increase in mesomorphic range as well as decrease in crystallization points by preserving mesophase type. The experimental process involved the reaction of Methyl 5-bromopicolinate(cas: 29682-15-3HPLC of Formula: 29682-15-3)
Methyl 5-bromopicolinate(cas: 29682-15-3) belongs to pyridine. The basicity and metallophilic high donor number of these π-deficient systems has long favored them as ligands in metal catalysis. The last decade saw pyridine assume a stronger role as functional group for directed C–H oxidation/activation.HPLC of Formula: 29682-15-3