Organic letters
Synthesis of Unsymmetrical 4,4'-Bipyridines through Base-Mediated Cross-Coupling between 4-Pyridyl Phosphonium Salts.
Braja Kishor Paul, Malekul Islam, Fadil Faizal Mannighayil, Suman De Sarkar
Published: 202610.1021/acs.orglett.5c05284
Abstract
Syntheses of unsymmetrical 4,4'-bipyridines were achieved through base-mediated cross-couplings of diverse 4-pyridyl phosphonium salts. This transition-metal- and oxidant-free protocol operates under mild conditions and tolerates a broad range of fun…
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