Hydrotalcite pillared by polyoxometalates of Mo and W catalyzed epoxidation of alkenes with H2O2 with significant shape selectivity; epoxidation of 2-hexene was favored than that of cyclohexene. The subsequent hydrolysis of epoxides to form diols was retarded compared to hydrotalcite-free catalysts.
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Tatsumi et al. (1992) studied this question.
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