Regioselectivity相关论文
Dual Palladium/Scandium Catalysis toward Rotationally Hindered C3-Naphthylated Indoles from β-Alkyny
A new dual palladium/scandium catalysis starting from β-alkynyl ketones and o-alkynyl anilines is reported for the firs......
本文通过对荣华二采区10...
Enzymatic regioselective symthesis of vinthesis of vinyl lactose ester and its chemical polymerizati
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......
Regioselective synthesis and anti-HIV activity of the novel 2- and 4- substituted pyrazolo [4,5-e] [
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......
Palladium-catalyzed highly regioselective Heck reaction of aryl nonaflates with electron-rich olefin
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......
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......
Carbon-Selective Difluoromethylation of Soft Carbon Nucleophiles with Difluoromethylated Sulfonium Y
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......
Insight into the Detailed Mechanism of HRh(CO)(PPh3)3 Catalyzed Hydroformylation of 1-Phenyl-1-(3-py
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......
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......
Hydroselenation of 1, 2-allenyl sulfoxides give 2-organoseleno substituted allyl sulfoxides in high yields and the react......
Regioselective Propargylation of Aldehydes with Propargyl Bromide Mediated by Sn-In in Aqueous Media
Tin-indium were employed in the propargylations of various aldehydes with propargyl bromide in the presence of SnCl2 and......
Insight into the Detailed Mechanism of HRh(CO)(PPh3)3 Catalyzed Hydroformylation of 1-Phenyl-1-(3-py
Density functional calculations have been used to study the mechanism of 1-phenyl-1-(3-pyridyl)ethene hydroformylation u......
1IntroductionThe primary objectives of the group "Natural products and bioactive molecules", are the development of synt......
Enzymatic regioselective symthesis of vinthesis of vinyl lactose ester and its chemical polymerizati
Transesterification reaction of lactose with divinyladipate in pyridine catalyzed by an alkaline protease from Bacillus ......
Regioselective Synthesis of Polymerizable Vinyl Guaifenesin Esters Catalyzed by an Alkaline Protease
Three polymerizable vinyl guaifenesin esters with different acyl donor carbon chain lengths (C4,C6,C10) were regioselect......
Lipase-catalyzed Regioselective Synthesis of Vinyl Ester Derivatives of Thiamphenicol: Novel Thiamph
Three polymerizable vinyl thiamphenicol esters with different acyl donor carbon chain length (C4, C6, C10) were regiosel......
The nucleophilic addition of Ti(Ⅳ) enolate derived from methyl aryl ketones to α, β-unsaturated compounds was found t......
Regioselectivity Study on Propylene Polymerization Catalyzed by Neutral Salicyladiminato Pd(Ⅱ) Model
Many attempts have been made to control the regioselectivity for olefin poly- merization by varying the structures of li......
A New Approach to Ethyl 1-Aroyl/Aroylmethyl-5-methyl-3-methylthiopyrazole-4-carboxylates: High Regio
Two series, totalizing twelve, of new compounds, ethyl 1-aroyl/aroylmethyl-5-methyl-3-methylthiopyrazole-4-carboxylates ......
A series of acyls (Ac, Bz and Ts) were introduced regioselectively to the 2-hydroxyl in methyl and ally 3-O-benzyl-α-L-......
Regioselective synthesis and anti-HIV activity of the novel 2- and 4- substituted pyrazolo [4,5-e] [
The new regioisomer 7-methyl-pyrazolo[4,5-e] [1,2,4]thiadiazine nucleus (5) was synthesized, and its novel mono-N2- or N......
Palladium-catalyzed highly regioselective Heck reaction of aryl nonaflates with electron-rich olefin
Highly efficient palladium-catalyzed Heck coupling of aryl nonaflates with electron-rich vinyl ethers, and enamides is d......
以D-甘露醇转化得到的骨架为支架Pauson-Khand反应成功实现了高度区域和立体选择性地合成具有C2对称性的多官能团的多环手性化合物......
详细综述了非水相酶催化合成蔗糖酯的研究进展。主要介绍了酶的种类、反应介质、底物性质、外加辅助手段等因素对蔗糖酯产率以及对......
研究了在有机介质叔丁醇中魔芋葡甘聚糖（KGM）的分子量及酰基供体对固定化脂肪酶Novozym435催化KGM乙酰化反应的影响．KGM的分子量对酶......
在交联柱撑皂土催化下，应用硝酸硝化甲苯，能提高甲苯的对位选择性硝化能力，邻对硝基甲苯比例较通常硝硫混酸方法硝化邻对位产物比例(1......
用CO2作为原料,在过渡金属催化下生成新的碳碳键是很重要的.在这类反应中,杂原子官能团和CO2同时与不饱和的底物被催化生成高功能......
异戊烯金属有机化合物与羰基化合物加成反应是合成含α-羟基异戊烯结构单元的天然化合物最简便的方法，但该反应通常生成α-加成和γ......
综述了近年来金属镓及其络合物参与的各类化学反应,并介绍了镓试剂促进的一些新型反应的特点和优势以及其在有机合成中的应用。......
芳烃硝化的现实意义之一是建立具有区域选择性的硝化方法以满足质量的发展要求。在酸性皂土催化剂上，应用硝酸硝化卤苯能够提高卤苯......
对C60及其衍生物的金属化合物催化性能的研究表明,以富勒烯为基体的催化剂对许多化学反应具有独特的催化活性,这方面的研究是富勒......
在三氟甲磺酸铜催化下，苯烯基重氮甲酯和苯胺（2）在多种溶剂下发生插入反应，主要产物是α，β-不饱和γ-氨基酸衍生物。以二氯甲烷为溶剂......
研究枯草杆菌蛋白酶催化环糊精与癸二酸二乙烯酯在DMF有机溶剂中的区域选择性反应,产物结构经IR、1H NMR、13C NMR、MS和DSC分析证......
邻二甲苯在催化剂存在下,10℃～30℃,以理论量硝酸进行硝化,硝化物中的3,4-二甲基硝基苯收率高于88%,含量达到70%～75%,比旧工艺提高30......
根据ABEEM-σπ模型计算的Fukui函数、局域软度、全局硬度和电荷分布等物理量，应用硬软酸碱原理和最大硬度原理，合理地解释了典型不......
克拉霉素（Clarithromycin）是第二代十四元大环内酯抗生素，其合成是保护技术应用和区域选择性研究的一次集中体现．目前，美国雅培实验室和......
用载溴树脂作为间甲基茴香醚，间甲酚等活泼芳香化合物的溴化剂，得到一溴代产物，产率为７５－８５％。该试剂反应条件温和，选择性好，是一种有效的的活......
对两种邻、间手性二醇的区域选择性取代反应进行了研究．以（R）-（-）-1，3-丁二醇（1）为起始原料，在各种有机碱存在下，先合成C^1-位单磺酸酯，进行C^......
研究了3-O-苄基-α—L-鼠李糖甲苷在化学量的氧化银存在下，与酰化剂乙酰氯以及苯甲酰氯的反应，实现了2-位羟基的选择性单酰化，收率分......
