Syntheses of 2,4′‐and 3,4′‐Bipyridines Via Lithium Halogen Exchange of Bromopyridines and Addition to  N ‐Ethoxycarbonylpyridinium Chloride in the Presence of Cul | Zendy

Shiao MinJen | Zendy; Tarng KaiYih | Zendy; Shyu LiMing | Zendy

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Syntheses of 2,4′‐and 3,4′‐Bipyridines Via Lithium Halogen Exchange of Bromopyridines and Addition to N ‐Ethoxycarbonylpyridinium Chloride in the Presence of Cul

Author(s) -

Shiao MinJen,

Tarng KaiYih,

Shyu LiMing

Publication year - 1989

Publication title -

journal of the chinese chemical society

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.329

H-Index - 45

eISSN - 2192-6549

pISSN - 0009-4536

DOI - 10.1002/jccs.198900080

Subject(s) - chemistry , halogen , yield (engineering) , reagent , lithium (medication) , chloride , lithium chloride , medicinal chemistry , inorganic chemistry , organic chemistry , metallurgy , medicine , alkyl , materials science , endocrinology

2,4′‐Bipyridines 4a, 4c, 4d and 3,4′‐bipyridines 4b, 4e, 4f, 4g, 4h are obtained in modest yield by the addition of organocuprate reagents derived from bromopyridines 2a‐h to N‐ethoxycarbonylpyridinium chloride 1 followed by air oxidation.

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