Heterocyclic Compounds
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ChemInform Abstract: Reactions of Heteroaryllithium Compounds with Phosphorus Trichloride, Phosphorus Oxychloride, and Thionyl Chloride. Formation of Heterocyclic Biaryls.
First published: May 9, 1995
Abstract
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ChemInform Abstract
The reactions of 3-4 equivalents of heterocyclic aryllithium compounds with POCl3, SOCl2 or PCl3 give the symmetrical biaryls (II), (IV), ( VIII) or (XI) in good yields. With PCl3 the formation of by-products such as the phosphines (V) and (IX) or the terpyridine (VI) is observed.
