• Respectively using barium hydroxide and a basic anion exchanger as a catalyst, 2, 2-bis (hydroxymethyl) butyraldehyde is prepared from the Aldol condensation of butyraldehyde with formaldehyde.

    碱性催化剂的存在下,甲醛缩合反应合成2,2—二羟甲基丁醛。

    youdao

  • The side-reactions were studied primarily in this paper, and the process of cross-aldol condensation were analyzed initially in kinetics.

    缩合过程发生副反应的机理进行探讨,同时也对交叉缩合反应过程动力学作了初探。

    youdao

  • Especially it introduces the parameter of the cross aldol condensation and side-reaction controlling, the midterm products separation, and catalyzed hydrogenation.

    重点研究了交叉缩合副反应控制、中间产物脱水及催化加氢有关参数

    youdao

  • Some problems about the intersection condensation of aldol in the present textbook of organic Chemical Experiment are pointed out. Mean while some improved are presented.

    本文指出现行有机化学实验教材中的交叉缩合反应存在不足,并提出改进措施。

    youdao

  • Some problems about the intersection condensation of aldol in the present textbook of organic Chemical Experiment are pointed out. Mean while some improved are presented.

    本文指出现行有机化学实验教材中的交叉缩合反应存在不足,并提出改进措施。

    youdao

$firstVoiceSent
- 来自原声例句
小调查
请问您想要如何调整此模块?

感谢您的反馈,我们会尽快进行适当修改!
进来说说原因吧 确定
小调查
请问您想要如何调整此模块?

感谢您的反馈,我们会尽快进行适当修改!
进来说说原因吧 确定