Tetrahedron letters

Activation of reducing agents. Sodium hydride containing complex reducing agents 23. Symmetrical coupling of nitrogen-containing heterocyclic halides

R Vanderesse, M Lourak, Y Fort, P Caubere

Index: Vanderesse, R.; Lourak, M.; Fort, Y.; Caubere, P. Tetrahedron Letters, 1986 , vol. 27, # 45 p. 5483 - 5486

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Citation Number: 29

Abstract

The preparation of NiCRA (NaH-B ONa-Ni(OAc) 2 ) in the presence of PPh 3 , leads to a reagent (termed NiCRA-PPh 3 ) which is shown to be one of the most efficient Ni containing reagents reported so far for the homocoupling of heteroaromatic halides. ... NiCRA-bpy is shown to be one of the most efficient Ni containing reagents for the homocoupling of heteroaromatic halides and in particular chlorides. ... See for example J. Am. Chem. Soc., 103 (1981), p. 6460 ...