Tetrahedron letters

Preparation of substituted 1, 2, 3, 4-tetrahydroquinoxalines and 2, 3, 4, 5-tetrahydro-1H-benzo [b][1, 4] diazepines from catalytic Cp∗ Ir hydrogen transfer N- …

CT Eary, D Clausen

Index: Todd Eary; Clausen, Dane Tetrahedron Letters, 2006 , vol. 47, # 38 p. 6899 - 6902

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Citation Number: 39

Abstract

The [Cp∗ IrCl2] 2/K2CO3 catalyzed hydrogen transfer N-heterocyclization on a series of anilino alcohols has been investigated. The catalyst (20% loading) converts anilino alcohols to 1, 2, 3, 4-tetrahydroquinoxalines and 2, 3, 4, 5-tetrahydro-1H-benzo [b][1, 4] diazepines in 30–84% isolated yield.