The Beckmann rearrangement. VII. The isolation and rearrangement of 2, 4, 6-trimethylacetophenone oxime

F Greer, DE Pearson

Index: Greer; Pearson Journal of the American Chemical Society, 1955 , vol. 77, p. 6649

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Citation Number: 8

Abstract

Previous failures to isolate the oximes of di-omethyl substituted acetophenones-have been summarized by Kadesch.'s2 These are attributed to the difficulty of supplying correctly the additional energy necessary for the conversion of the aceto grouping to the a-oximinoethyl grouping (-C= NOHCH3) in hindered structure^.'^^ In this conversion the a-oximinoethyl grouping is tilted out of the plane of the ring to a greater degree than the aceto grouping ...