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- A variety of aldehydes were converted into acylals in good yields with anhydride in the presence of a catalytic amount of zinc bromide under solvent-free conditions. 以醛和酸酐为原料,溴化锌为催化剂,无溶剂条件下高产率地合成了偕二酸酯(其中醛与苯甲酸酐的反应是首次报道)。
- Firstly, we studied the carbozincation of acetylenic sulfones with organozinc reagents, which include allyl zinc bromide, benzyl zinc bromide, aryl zinc chloride, alkyl zinc chloride and diethyl zinc. 研究了烯丙基溴化锌、苄基溴化锌、芳基氯化锌、烷基氯化锌等有机锌试剂与炔基砜的碳锌化反应。
- Keywords zinc bromide;quaternary onium tribromide salt;epoxide;carbon dioxide;coupling reaction;cyclic carbonate; 溴化锌;季鎓三溴盐;环氧化合物;二氧化碳;偶联反应;环碳酸酯;
- Brass is an alloy of copper and zinc. 黄铜是铜和锌的合金。
- Brass is formed by the fusion of copper and zinc. 黄铜是由铜和锌熔合制成的。
- An alloy composed of lead, tin, and zinc. 铅锡锌化合物由铅、锡和锌组成的一种合金
- zinc bromide 溴化锌
- You should first put a small piece of zinc plate into the cup. 首先,要向杯子里放一小片锌板。
- The fusion of copper and zinc makes the metal brass. 铜和锌的熔化制成黄铜。
- Aim To study the synthesis of rocuronium bromide. 摘要目的合成罗库溴铵。
- An alloy of zinc and copper used as imitation gold. 铜锌合金作为仿金品使用的铜锌合金
- An alloy of copper, zinc, and tin, used in imitation gold jewelry. 金色铜一种由铜、锌和锡制成的合金,用于仿制黄金首饰
- The fusion of copper and zinc make the metal brass. 铜和锌的熔化制成黄铜。
- Zinc is generally caustic to foliage. 锌常对幼叶有腐蚀作用。
- Zinc displaces the hydrogen of dilute acids. 锌置换了稀酸中的氢。
- The process of engraving zinc printing plates. 制锌版术雕刻锌印刷版的过程
- To coat(iron or steel) with rust-resistant zinc. 对(铁或钢)镀一层锌
- A red to yellow-orange zinc ore, ZnO. 红锌矿颜色由红到橘黄色的锌矿,氧化锌
- Run out Output film or bromide from a phototypesetting machine. 从照相排字机输出的菲林或相纸。
- The extinct exotic bird's feather contains zinc. 那种已绝迹的珍奇的鸟的羽毛中含锌。