Tetrahedron

Polar effects in hydrogen abstraction from benzaldehydes—I: Abstraction by the trichloromethyl radical

KH Lee

Index: Lee,K.H. Tetrahedron, 1968 , vol. 24, p. 4793 - 4803

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Citation Number: 20

Abstract

The relative rates of hydrogen abstraction by the trichloromethyl radical have been determined for nine m-and p-substituted benzaldehydes by means of competitive reactions using ethylbenzene as referecne standard. A polar effect ϱ= 0· 74) was shown to be correlated by the Hammett equation with the σ constant, and the anomalous behaviour of the p-MeO and p-PhO substituents is discussed. The deuterium isotope effect KH/KD was ...