Tetrahedron Letters

Synthesis of 2-aryl-2H-indazoles by base catalysed reaction of 2-nitrobenzyl triphenylphosphonium bromide and aryl isocyanates

A Taher, S Ladwa, ST Rajan, GW Weaver

文献索引：Taher; Ladwa; Rajan; Weaver Tetrahedron Letters, 2000 , vol. 41, # 50 p. 9893 - 9897

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被引用次数: 21

摘要

As part of our studies on developing new heterocyclisation reactions, 1 we have been investigating reactions where the nitrogen atom of a nitro substituent on an aromatic or heteroaromatic ring undergoes transformation into a new heterocyclic ring nitrogen. We have shown that nitroimidazolyl phosphoramidates undergo reaction with aryl isocyanates to form imidazo fused [1,2,3]triazoles , 2 and now wish to report our findings on the reaction of nitrobenzyl phosphonium salts ...