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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。Proline is believed to catalyse the aldol reaction through a hydrogen-bonded intermediate.

不对称羟醛缩合反应是有机合成中立体选择性地形成碳碳键的最重要方法之一。The asymmetric aldol reaction is one of the most important methods of forming carbon-carbon bonds.

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脯氨酸催化不对称直接羟醛缩合反应是近年来不对称合成研究的热点。Asymmetric direct aldol reaction is one of the central study issues in the field of asymmetric synthesis.

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 direct aldol reactions catalyzed by organocatalyst derived from 2-amino-2'-hydroxy-1,1'-binaphthyl were studied.

本文介绍了用正庚醛和苯甲醛通过羟醛缩合合成甲位戊基桂醛。This paper introduced the preparation of a-amyl cinnamaldehyde via aldol condensation of n-heptanal and benzaldehyde.

它们首次被用于催化Aldol反应，并证明是该转化反应有效的催化剂。They were first applied to catalyze aldol reactions, and were found to be effective catalysts for the transformations.

在碱性催化剂的存在下，甲醛和丁醛进行羟醛缩合反应，制备2，2-二羟甲基丁醛。Using inorganic base as a catalyst, 2,2dimethylolbutyraldehyde was prepared by aldol condensation from formaldehyde and butyraldehyde.

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综述并讨论了分子内和分子间不对称直接羟醛缩合的反应机理及其微观过程。In this review, reaction mechanisms of proline-catalyzed intra- and inter-molecular asymmetric aldol reactions are presented and discussed.

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。Amyl cinnamaldehyde was synthesized from benzaldehyde and n-heptanal by aldol condensation with catalyst potassium hydroxide in solvent ethylene glycol.

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。It was formerly derived by fermentation of carbohydrates but is now made synthetically by aldol condensation of acetaldehyde or by oxidation of petroleum gases.

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

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。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.

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采用PEG-400为相转移催化剂，KOH为碱性催化剂，由苯甲醛和正庚醛经醇醛缩合反应制得茉莉醛。Jasminaldehyde was synthesized by the aldol condensation of benzaldehyde with heptaldehyde under the condition of PEG-400 as phase transfer catalyst, KOH as base catalyst.