Proline is believed to catalyse the aldol reaction through a hydrogen-bonded intermediate.
人们普遍认为，脯氨酸通过形成单氢键相连接的中介物来催化醛醇缩合反应。
The direct aldol reactions catalyzed by organocatalyst derived from 2-amino-2 '-hydroxy-1, 1' -binaphthyl were studied.
研究了2 -氨基- 2' -羟基- 1,1 ' -联萘衍生的有机小分子催化剂催化的直接羟醛缩合反应。
The side-reactions were studied primarily in this paper, and the process of cross-aldol condensation were analyzed initially in kinetics.
对缩合过程中发生副反应的机理进行了探讨，同时也对交叉缩合反应过程的动力学作了初探。
Amyl cinnamaldehyde was synthesized from benzaldehyde and n-heptanal by aldol condensation with catalyst potassium hydroxide in solvent ethylene glycol.
以苯甲醛和正庚醛为原料，乙二醇为溶剂，在氢氧化钾催化作用下羟醛缩合合成甲位戊基桂醛。
It was formerly derived by fermentation of carbohydrates but is now made synthetically by aldol condensation of acetaldehyde or by oxidation of petroleum gases.
以前它是由碳水化合物发酵得到，现在由乙醛醛醇缩合或石油气体氧化的合成方法制得。
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及副反应的控制、中间产物脱水及催化加氢的有关参数。
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.
本文指出了现行有机化学实验教材中的交叉羟醛缩合反应存在的不足，并提出改进措施。
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.
在碱性催化剂的存在下，甲醛和丁醛经羟醛缩合反应合成2,2—二羟甲基丁醛。
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.
在碱性催化剂的存在下，甲醛和丁醛经羟醛缩合反应合成2,2—二羟甲基丁醛。
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