Tetrahedron letters

Neue methode zur regiospezifischen substitution einiger reaktionsträcer N-heteroaromatischer ringsysteme

E Anders, F Markus

文献索引：Anders, Ernst; Markus, Fritz Tetrahedron Letters, 1987 ,  vol. 28,  # 24  p. 2675 - 2676

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被引用次数: 8

摘要

N-Trifluoromethanesulfonyl-heteroarylium salts give the C4-or C2-substituted products 4 or 5. 1 react with phosphanes 2 to By means of a similar procedure, bisphosphonium salts a and 1. are formed: Tht reaction of sodium azide (si, and 5 yields the iminophosphorane 10 via the intermediate 9.--