Tetrahedron Letters

An environment-friendly Beckmann rearrangement: the diazotisation of ketoxime carbamates

R Anilkumar, S Chandrasekhar

Index: Anilkumar; Chandrasekhar, Sosale Tetrahedron Letters, 2000 , vol. 41, # 28 p. 5427 - 5429

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Citation Number: 15

Abstract

The titled reaction was effected with iso-amyl nitrite or sodium nitrite, both in conc. H2SO4 at 0–25° C in excellent yields (55–98%). Apart from the mild temperatures employed, organic solvents and reagents can be avoided, and the by-products are CO2 and N2, so the