Tetrahedron Letters p. 7091 - 7094 (1989)
Update date:2022-07-29
Topics:
Furukawa
Shibutani
Fujihara
Treatment of 2-, 3-, and 4-pyridyl phenyl sulfoxides with lithium diisopropylamide (LDA), subsequently with electrophiles gave the correponding sulfoxides regioselectively bearing substituents at the α-position in the pyridine ring. These sulfoxides were converted to the substituted bipyridyls in high yields via cross-coupling reactions with pyridyl Grignard reagents (PyMgBr).
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