henry反应,Henry reaction
1)Henry reactionhenry反应
1.Henry reaction is one of the exceptionally useful strategic C-C bond forming reactions for the construction of organic molecules.通常的henry反应催化剂为强酸或者强碱,能否找到一种温和的催化剂来催化此反应呢?通过筛选,我们发现在催化剂量的联二萘酚双钠盐(3 mol%)存在下,henry反应能够快速的进行,产率高达100%。
2.β-nitrostyrene was synthesized by ultrasonicHenry reaction and the accessory ingredient of alcohol Claisen-Schmidt reaction,using benzaldehyde and nitromethane as raw materials.分别研究了在超声波辅助Henry反应和甲醇助剂存在Claisen-Schmidt反应的条件下由苯甲醛、硝基甲烷合成β-硝基苯乙烯的反应条件,发现Claisen-Schmidt反应条件下收率最高,产率为84%。
3.TheHenry reaction of cyclic α-ketoesters and α-ketoamides was achieved using triethylamine as a promoter.用三乙胺催化环状α-酮酯和α-酮酰胺同硝基甲烷的Henry反应,首次合成了12个多官能团的β-硝基醇,它们的结构用元素分析、红外光谱和核磁共振进行了表征。
2)Henry condensationHenry缩合反应
3)asymmetric Henry reaction不对称Henry反应
1.The new reaction conditions and new catalysts which can efficiently catalyzeasymmetric Henry reaction were summarized.总结了各种能有效催化不对称Henry反应的新方法、新条件和新催化剂,讨论了一类拓展的不对称催化Henry反应。
2.Therefore, we chose asymmetric henry reaction to prepare the key intermediate for (R)-Aegeline, namely (R)-2-amino-1-(4-methoxy phenyl) ethanol.Henry反应是羰基化合物和含有α-活泼氢的硝基烷烃类化合物之间的碳碳键形成反应,不对称Henry反应是制备手性β-硝基醇的最直接、最有效的方法之一,而手性β-硝基醇经还原又可得到手性β-氨基醇。
英文短句/例句
1.Studies on Synthesis of Chiral β-Amino Alcohols and Their Application in Asymmetric Henry Reactions手性β-氨基醇的合成及其催化的不对称Henry反应
2.Synthesis and Asymmetric Henry Reaction of Menthyl Phenylglyoxylate苯乙酮酸薄荷醇酯的合成及其不对称Henry反应
3.The New Catalytic System of Asymmetric Henry Reaction and Application of Synthesis of (R)-Aegeline不对称Henry反应的新催化体系及其在（R）-印枳碱不对称合成中的应用
4.Studies on a Novel Chiral N,N"-Dioxide Applying to Asymmetric Silylcyanation of Ketones and Henry Reaction;新型手性氮氧化物在催化羰基化合物的不对称硅腈化反应和Henry反应中的应用研究
5.Synthesis of Chitosan Supported L-proline and Its Catalytic Capacities for Direct Asymmetric Aldol and Henry Reaction;壳聚糖负载L-脯氨酸的合成及对直接不对称Aldol和Henry反应的催化性能
6.The Henry Reaction Catalyzed by the Catalyst Disodium Binaphtholate;联二萘酚双钠盐催化的Henry反应研究
7.Asymmetric Silylcyanation and Asymmetric Baylis-Hillman Reaction of Aldehydes;醛的不对称硅氰化反应及不对称Baylis-Hillman反应
8.The Synthesis of New Chiral Ligands and the Application in the Henry Reaction新型手性配体的合成及在Henry反应中的应用
9.Synthesis of Chiral Imines and Aza-allyl and the Catalytic Towards Henry Reaction手性亚胺、氮杂烯丙基的合成及Henry反应的催化
10.Improved Synthesis of the Taxol Through Asymmetric Dihydroxylation (AD) and Asymmetric Aminohydroxylation (AA) of Olfins;用不对称双羟化反应和不对称氨羟化反应合成抗癌新药紫杉醇
11.Application Study of Asymmetric Allylation of Aldehydes;醛的不对称烯丙基化反应及应用研究
12.Studies on Organocatalyzed Asymmetric Aldol and Other Reactions;有机催化的不对称Aldol反应及其它相关反应研究
anocatalytic Asymmetry Aldol and Oxa-Diels-Alder Reaction;有机催化的不对称Aldol反应和Oxa-Diels-Alder反应
14.Homogeneous asymmetric hydrogenation: a mature technology?均相不对称氢化反应：技术成熟吗？
15.Studies on Rhodium-Catalyzed Asymmetric Cyclization Reactions of 1, 6-Enynes;铑催化1，6-烯炔不对称环化反应研究
16.Studies on Asymmetric Hetero-Diels-Alder Reaction between Brassard Diene with Aldehydes;Brassard二烯与醛的不对称HDA反应研究
17.The Study of Asymmetric Photoinduced Electron Transfer Cyclization Reaction;光诱导电子转移不对称环合反应研究
18.The Research of Asymmetric Organic Reactions Promoted by the Metals;金属参与的不对称有机化学反应研究
相关短句/例句
Henry condensationHenry缩合反应
3)asymmetric Henry reaction不对称Henry反应
1.The new reaction conditions and new catalysts which can efficiently catalyzeasymmetric Henry reaction were summarized.总结了各种能有效催化不对称Henry反应的新方法、新条件和新催化剂,讨论了一类拓展的不对称催化Henry反应。
2.Therefore, we chose asymmetric henry reaction to prepare the key intermediate for (R)-Aegeline, namely (R)-2-amino-1-(4-methoxy phenyl) ethanol.Henry反应是羰基化合物和含有α-活泼氢的硝基烷烃类化合物之间的碳碳键形成反应,不对称Henry反应是制备手性β-硝基醇的最直接、最有效的方法之一,而手性β-硝基醇经还原又可得到手性β-氨基醇。
4)Henry lawHenry定律
5)Henry constantHenry常数
1.An empirical equation was used to correlate theHenry constant with temperature from the experimental data.从试验数据得到了描述Henry常数与温度关系的经验方程。
2.To illustrate interaction between hydrophobic porous silica(HPS) and water and alcohols,Henry constant of water and adsorption isotherms of C2-5 alcohols were investigated by mass of finite pulse gas-solid chromatography at 140 ℃.采用脉冲色谱法测定了140℃时疏水多孔硅胶(HPS)上C2～5醇的吸附等温线及醇和水的Henry常数。
6)Larix olgensis Henty落叶松(Larix olgensis Henry)
延伸阅读
Henry reaction分子式：CAS号：性质：伯或仲硝基烷的α-活泼氢原子在碱催化下与醛发生类似醇醛缩合的反应，生成硝基醇化合物。若伯或仲硝基烷有多个α-活泼氢，就可与多个醛缩合。可用作催化剂的碱有氢氧化钾、碳酸钾、碳酸氢钠、醇钠、胺、氢氧化钙等。
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