From para-dimethoxybenzene toward crown benzenophanes: 1, 3, 10, 14-tetraoxa [3.5] paracyclophane

…, JP Desvergne, H Bouas-Laurent

Index: Hopf, Henning; Utermoehlen, Ralf; Jones, Peter G.; Desvergne, Jean-Pierre; Bouas-Laurent, Henri Journal of Organic Chemistry, 1992 , vol. 57, # 20 p. 5509 - 5517

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Citation Number: 8

Abstract

The title compound tetraoxa [3.5] paracyclophane (6) has been prepared and studied in order to investigate the evolution of spectroecopic properties in going from the monomer unit p-dimethoxybenzene (9) via the noncyclic bichromophoric reference compound 3b to 6. The X-ray structural analysis of 6 shows that the distance between the two aromatic carbon atoms linked to the smaller bridge is shorter than the van der Waals distance. The ...