Cocondensation Reactions of Five??Membered Heterocycles with Lithium Atoms at 77 K

O Mendoza, FJK Rehmann, LP Cuffe…

Index: Mendoza, Oscar; Rehmann, Franz-Josef K.; Cuffe, Laurence P.; Tacke, Matthias European Journal of Inorganic Chemistry, 2004 , # 22 p. 4525 - 4532

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Citation Number: 2

Abstract

Abstract Lithium atoms were cocondensed with eight aromatic five-membered heterocycles in the presence of THF at 77 K. In the case of the oxygen-and sulfur-containing heterocycles (furans and thiophenes), the reaction resulted in C− H bond activation and led to the corresponding aryllithium compound. The other heterocycles (pyrroles) failed to react with lithium atoms in the presence of THF. A special case was found when oxazole was ...