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Reactions of tris(2-pyridyl)phosphine oxides with electrophiles: Formation of 5-substituted 2,2′-bipyridyls

✍ Scribed by Yuzuru Uchida; Masami Matsumoto; Haruyasu Kawamura

Publisher
John Wiley and Sons
Year
2003
Tongue
English
Weight
146 KB
Volume
14
Category
Article
ISSN
1042-7163

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✦ Synopsis

Abstract

The reaction of tris(2‐pyridyl)phosphine oxides with benzeneselenenyl chloride in methanol gave the corresponding 5‐phenylseleno‐2,2′‐bipyridyls together with a small amount of 2,2′‐bipyridyls. Similarly, the reaction with arenesulfenyl chlorides in aqueous acetonitrile afforded two kinds of coupling products, 5‐phenylthio‐2,2′‐bipyridyls and 2,2′‐bipyridyls. While in the reaction with arenesulfinyl chlorides in aqueous acetonitrile, four corresponding bipyridyl derivatives, 2,2′‐bipyridyls, 5‐arylthio‐2,2′‐bipyridyls, 5‐arylsulfinyl‐2,2′‐bipyridyls, and 5‐arylsulfonyl‐2,2′‐bipyridyls, were formed. © 2003 Wiley Periodicals, Inc. Heteroatom Chem 14:72–81, 2003; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/hc.10085

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