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- phenylpropionaldehyde cyclic ethylene acetal 苯乙醛二异戊缩醛
- cyclic ethylene acetal 环乙二醇缩醛
- Bromobutyraldehyde ethylene acetal was synthesized from crotonaldehyde by addition with hydrogen bromide and then acetalation with ethylene glycol with an overall yield of 80. 巴豆醛先与溴化氢加成;再与乙二醇缩醛化得到3-溴代丁醛缩乙二醇;收率80.;8%25。
- Bromobutyraldehyde ethylene acetal was synthesized from crotonaldehyde by addition with hydrogen bromide and then acetalation with ethylene glycol with an overall yield of 80.8%. 巴豆醛先与溴化氢加成;再与乙二醇缩醛化得到3-溴代丁醛缩乙二醇;收率80.;8%25。
- This paper reports the using of molybdophosphoric acid in synthesizing heptyl aldehyde ethylene acetal and meanwhile probes into the synthesizing conditions. 介绍了磷钼酸在乙二醇和庚醛缩合反应中的应用,探讨了乙二醇缩庚醛的合成条件。
- Study on Catalysis Synthesis of Acetoacetic Ester Cyclic Ethylene Ketal 乙酰乙酸乙酯环乙二缩酮的催化合成研究
- SYNTHESIS OF CINAMALDEHYDE ETHYLENE ACETAL CATALYZED BY p-AMINOBENZENE SULFONIC ACID 对氨基苯磺酸催化合成肉桂醛缩乙二醇
- Keywords bromobutyraldehyde ethylene acetal;crotonaldehyde;acetalation;addition;synthesis; 溴代丁醛缩乙二醇;巴豆醛;缩醛化;加成;合成;
- Keywords ultrasonic;n-butyraldehyde;ethylene acetal;12-tungstosilicic（H_4SiW_ 12O_ 40）;catalyst;acetalation; 超声波;丁醛乙二醇缩醛;硅钨酸;催化;缩醛反应;
- Keywords molybdophosphoric acid heptyl aldehyde ethylene acetal synthesis methods; 磷钼酸;乙二醇缩庚醛;合成方法;
- Keywords H_4SiW_（12）O_（40）;Catalysis;Synthesis;Isobutyraldehyde ethylene acetal; 硅钨酸;催化;合成;异丁醛乙二醇缩醛;
- cyclic ethylene urea 环乙撑脲
- A cyclic code with minimum redundancy used to check errors in a set of characters. 一种用于检查一组字符的错误、并且具有最小冗余度的循环码。
- The unsaturated link occurs in a cyclic system. 在环体系中存在不饱和键。
- The steam-engine piston makes a cyclic motion. 蒸汽机活塞做往复运动。
- Shows how easy the cyclic graph is represented. 显示了循环图是多么容易表示。
- Repeat but use left cyclic instead of right cyclic. 重覆以上的动作,但是将副翼打左舵。
- Ethylene is a growth hormone in plants. 乙烯是植物中一种生长荷尔蒙。
- Average cardiac cyclic variation of IB, ACVI. 心动周期平均变动量。
- Acetal tubular load stabilizing frame. 令负重更为稳定。
