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Novel synthesis of liquid crystalline compounds of 5-substituted 2-(4-alkylphenyl)pyridines

✍ Scribed by Win-Long Chia; Shih-Wei Shen; Hong-Cheu Lin

Publisher
Elsevier Science
Year
2001
Tongue
French
Weight
234 KB
Volume
42
Category
Article
ISSN
0040-4039

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✦ Synopsis

This study describes a novel and efficient synthesis of pyridine-containing liquid crystalline 5-substituted 2-(4alkylphenyl)pyridines. 4-Alkylphenylmagnesium bromide was reacted with 3-substituted N-ethoxycarbonylpyridinium chloride to give regioselective 1,2-dihydropyridine intermediates, which were subsequently oxidized by o-chloranil. Good yields and high a-regioselectivity on the pyridine ring were observed in all cases.

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