Aldol相关论文
A modified total synthesis of cystothiazole A is described. In this synthetic strategy, a one-step transformation of acy......
在L-脯氨酸催化的芳香醛与丙酮直接不对称aldol反应体系中添加二醇或二酚类助剂可有效提高反应活性.助剂的使用降低了该反应体系中......
不对称氟化反应在有机氟化学领域中一直是研究热点之一,虽然在底物控制手性方面研究较广,但利用选择性断裂碳一碳键策略构建含单氟......
设计、合成了3种C2对称脯氨酸衍生物催化剂,将其用于不对称Aldol反应,得到了anti构型的主产物,表现出很好的化学产率(82%~92%)和最......
以手性伯胺为催化剂催化共轭不饱和三氟甲基酮与乙醛的不对称反应为关键步骤,合成了光学活性的β-三氟甲基?-β-羟基-δ-戊内酯.合......
研究了胰蛋白酶、猪胰脂肪酶、过氧化氢酶、α-胰凝乳蛋白酶、溶壁酶、尿素酶等6种酶对直接不对称Aldol反应的催化作用,对比了在乙......
以Brnsted酸为催化剂,糖基对甲苯磺酰肼为助催化剂（胺）,研究了芳香醛与酮在水介质中的直接Aldol反应。以对硝基苯甲醛和环己酮合成......
以氯霉素为原料,经五步反应合成了一种新的噁唑烷酮手性辅基,考察了其在不对称aldol反应中的手性诱导作用.在Ti Cl4/N,N’-四甲基......
以甲酰胺和氯丙酮等为原料合成了离子液体4-甲基-3-丁基噻唑硫酸氢盐。以aldol反应为探针,探究了离子液体催化苯甲醛与丙酮的缩合......
利用镁铝水滑石的记忆效应,以过硫酸铵为改性剂,经过浸渍焙烧复原过程,制得一系列硫促改性镁铝水滑石催化剂.利用XRD,BET,SEM和FT-......
制备了有机胺改性介孔分子筛催化剂APTMS-FSM-16、MAPTMS-FSM-16和DMAPTMS-FSM-16,通过与典型的有机胺及FSM-16混合催化剂比较,考......
高效率不对称催化的芳香酮与芳香醛的直接Aldol反应是不对称催化反应面临的一个较长时期的挑战.近年来,在不对称金属催化反应和有......
有机反应的微环境效应——手性胶束中的交叉Ａｌｄｏｌ反应张永敏孙培培（杭州大学化学系３１００２８）微环境效应在有机反应中起着重要作用，如手性胶束体系能......
芳香腈与醛的Aldol反应已被证明是一种合成各种反式β-羟基腈的有效途径。该反应的反式非对映立体选择性可用过渡态模型中的非成键......
以4(R)-羟基脯氨酸为原料,合成了高分子负载的脯氨酸衍生物,并用来催化丙酮对邻-和对-硝基苯甲醛的直接不对称Aldol加成反应,ee值......
用密度泛函理论B3LYP方法对双官能团离子液体[Promim]+[CF3CO2]-支撑丙酮与邻-硝基苯甲醛不对称aldol反应进行了研究.结果表明,该......
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有机合成由两个主要反应类型组成：C-C键的形成和官能基团的转换。其中C-C键的形成反应是有机合成的精髓，可从简单化合物合成出复杂化......
本文通过对荣华二采区10...
Acid-base cooperativity of heterogeneous catalyst containing acidic framework and sterically hindere
为探究吕家坨井田地质构造格局,根据钻孔勘探资料,采用分形理论和趋势面分析方法,研究了井田7......
Brassinolide(compound 1) and cathasterone(compound 2)(Scheme 1),whichis the biosyn-thetic precursor of compound 1,are a ......
以异戊醛为原料，在回流加热条件下进行羟醛缩合反应合成了2-异丙基-5-甲基-2-己烯醛。考察了催化剂种类和用量、相转移催化剂用量和......
Intramolecular Aldol Condensation ofα- Oxo Ketene Dibenzylthioacetals: A Facile Route to Substituted
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异戊烯醇在KHSO4的作用下，与苯醌发生作用，合成了含有异戊烯基的质体醌，其结构由紫外光谱，红外光谱，核磷共振谱得到证实。......
An ultrasound‐assisted aldol condensation reaction has been developed for a range of ketones with a variety of aromatic......
Prolinamido-glycoside catalyzed asymmetric aldol reaction in aqueous media is reported. The reactions are rapid and high......
Direct aldol reactions have been successfully performed using aromatic aldehyde and cyclic ketone in nonpolar solvent by......
Aldols from aliphatic aldehydes had been synthesized enantioselectively using Singh’s catalyst. Self and crossed aldol ......
The present study reports the reaction of 4-bromomethylcoumarins with salicylidineaniline in acetone with two equivalent......
Six compounds including five proline derivatives have been prepared and tested as chiral organocatalysts for enantiosele......
Recyclable Cyclohexanediamine Derivatives as Organocatalysts: Organocatalytic Reduction with Trichlo
Reduction of ketimine with trichlorosilane was carried out using bisformamide catalyst 1a derived from cyclohexanediamin......
In-situ generated ionic liquid catalyzed aldol condensation of trioxane with ester in mild homogeneo
α, β-unsaturated esters were often synthesized from aldehydes and esters in the presence of strong organic base that w......
A new route was developed for the synthesis of renewable decalin with cyclopentanone which can be derived from lignocell......
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Since the pioneering finding by List and Barbas Ⅲ and their coworkers that L-proline could work as a catalyst in the in......
Kinetics of Aldol Condensation of Furfural with Acetone Catalyzed by 1,8-Diazabicyclo[5.4.0]undec-7-
The kinetics of 1,8-diazabicyclo[5.4.0]undec-7-ene (DBU)-catalyzed aldol condensation of furfural with acetone was inves......
Synthesis of Dendrimer-supported Chiral Bis(oxazoline) Ligands and Their Applications in Aldol React
Chiral bis(oxazoline) ligands have been applied in many enatioselective reactions.Recently, studies of the immobilizatio......
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以10 mol％三乙烯二胺为催化剂,3-异硫氰酸酯氧化吲哚与α-羰基磷酸酯经aldol/环化反应,合成了一系列新型的螺[氧化吲哚-3,4＇-噁唑啉]......
Brassinolide(compound 1) and cathasterone(compound 2)(Scheme 1),whichis the biosyn-thetic precursor of compound 1,are a ......
