Journal of the American Chemical Society

Macro Rings. XII. Stereochemical Consequences of Steric Compression in the Smallest Paracyclophane1

DJ Cram, NL Allinger

Index: Cram; Allinger Journal of the American Chemical Society, 1955 , vol. 77, p. 6289,6292

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Citation Number: 144

Abstract

In this equation EA~H and CA~HD are the extinction coefficients of free and complexed diene, and KI is the equilibrium con- stant for formation of the complex. In some runs on di- methylanthracene and maleic anhydride the reaction rate was followed at one wave length until the diene concentra- tion was a small fraction of its initial value. Then the wave length setting of the spectrophotometer was shifted down- ward to a region of more intense diene absorption and a new series of ...