Thermal Reactions of Xylenes in a Temperature Gradient System

Article abstract of DOI:10.1246/cl.1990.893

4,4'-Dimethylbibenzyl was produced in high yield with <2.2>paracyclophane and toluene as by-products by the dehydrogenative coupling of p-xylene under a temperature gradient system, i.e., the thermal diffusion reactor.The results were different from those by the conventional tube reactors where far less selectivity for 4,4'-dimethylbibenzyl was obtained.