The liquid Na–Pb alloy system has been found to catalyze the dehydrogenation of several alkylbenzenes, i.e. ethylbenzene, cumene, and p-cymene. It has also been found that the alloy catalyzes the dehydrogenation of tetralin. In every reactions, the selectivity has been found to be satisfactorily high.
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Honda et al. (1978) studied this question.