以丙烯酸、二甲胺、环氧氯丙烷为原料，通过曼尼希反应制得两性离子单体。
Amphoteric monomer is prepared with acrylic acid, dimethylamine, and chloroethanol by Mannich reaction.
本文研究了以3-氯丙醇， 三苯基膦和丙醛为原料利用威蒂希反应合成叶醇的新路线。
A new path for the preparation of leaf alcohol with 3-chloropropanol, triphenylphosphine and propionaldehyde through Wittig reaction was studied.
根据疫情调查结果，决定在瓦希古亚卫生区开展反应性的大规模疫苗接种运动，目标人群为366 052人。
On the basis of the outbreak investigation, it was decided to carry out a reactive mass vaccination campaign targeting 366,052 people in the health district of Ouahigouya.
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