The effects of the catalyst dosage and the preparation conditions of HZ-1 zeolite, for example, number of exchange times on the benzoylation of toluene were studied.
并考察了HZ - 1沸石交换次数等制备条件和催化剂用量对甲苯的苯甲酰化反应的影响。
The position and sequence of benzoylation in tannin were studied by the analysis of benzoylated (-) epicatechin derivatives. The position of hydroxyl groups which react with isocya…