您要查找的是不是：
- One of the hydrogen atoms of the active methylene group is replaced with a cyclooxy group. 活性亚甲基上的一个氢原子是被环氧基所取代的。
- This paper reports the function of anhydrous potassium fluoride and acetonitrile in C-alkylation of active methylene group of acetoacetic ester. 无水氟化钾和乙腈在乙酰乙酸乙酯活泼亚甲基的C-烃基化中的作用。
- Appropriate aromatic amines were diazotized and coupled with the active methylene of the PVK to give a group of yellow pigments, which have the similar properties with Hansan Yellow dye. 然后再以合适的芳胺经重氮化反应偶合到PVK的活性亚甲基上，合成出类汉沙黄颜料。
- Phase transfer catalyzed alkylation of active methylene group 相转移催化活泼亚甲基的烃基化
- The Condensation of Aromatic Aldehyde with Active Methylene Compounds in Water 水溶剂中羰基与活性亚甲基化合物的缩合反应
- Keywords hydrazone;aromatic diazonium salt;active methylene compound;synthesis; 腙;芳香族重氮盐;活泼亚甲基化合物;合成;
- Keywords microwave;salicylaldehyde;active methylene compound;benzopyran; 微波;水杨醛;活性亚甲基化合物;苯并吡喃;
- The orient has been playing an active role in the world economy. 亚洲一直在世界经济中发挥积极作用。
- He is an active member of the school's stamp club. 他是学校集邮俱乐部的一名活跃会员。
- An active volcano may explode at any time. 活火山随时都有可能爆发。
- Is it wise to engage in active sports at your age? 我这样的年纪积极参加体育活动是否明智？
- She was active as a left-winger in the party. 她是党内积极的左翼分子。
- He was very active and rode down several horses. 他劲头很大，一连骑了好几匹马。
- She plays an active part in local politics. 她积极参与地方政治活动。
- The steel market will continue to be active. 钢材市场将会继续保持活跃。
- An active volcano may erupt at any time. 活火山随时可能喷发。
- Reactions of Ferrocenecarboxaldehyde with Compounds Containing Active Methylene Group in Aqueous Solution 二茂铁甲醛与含活性亚甲基化合物的水相反应研究
- He was disabled when on active service. 他在战斗中受伤致残。
- Ms. Brown is active in the party. 布朗女士在晚会上很活跃。
- The active boy was extremely distractible. 那好动的男孩极不专心。
