1) asymmetric transfer hydrogenation
不对称氢转移氢化
1.
The mixed systems combined from the ligand and various Ru,Rh or Ir complexes have been used as catalyst precursors for asymmetric transfer hydrogenation of propiophenone.
利用8-羟基喹啉与手性环己基二胺的反应,合成了对空气和水稳定的手性含氮四齿配体(R,R)-C6N4;进而分别与钌、铑或铱等金属络合物组合,现场生成催化体系,用于苯丙酮的不对称氢转移氢化反应;考察了碱添加量、配体用量和底物与催化剂用量摩尔比对反应性能的影响。
2.
Chiral carbonyl iron systems have seldom been used in asymmetric transfer hydrogenation of aromatic ketones.
手性羰基铁络合物很少被用于芳香酮的不对称氢转移氢化 。
2) asymmetric transfer hydrogenation
不对称转移氢化
1.
The new chiral iridium(I) complex catalysts were successfully applied to asymmetric transfer hydrogenation of various aromatic ketones an.
进而将其用于催化酮的不对称转移氢化和消旋二级醇的氧化动力学拆分，获得了非常高的手性效率。
2.
With Rh complex(Rh-4 or Rh-9) as catalyst and HCO2Na·2H2O as hydrogen source,highly efficient asymmetric transfer hydrogenation of aromatic ketone in water was achieved.
当以铑络合物(Rh-4或Rh-9)为催化剂,以甲酸钠为氢源,进行水相中芳香酮的不对称转移氢化反应时,Rh-4显示了较高的催化活性。
3) asymmetric transfer hydrogenation
不对称氢转移
1.
In order to explore a newapproach for recycling of the asymmetric catalyst, they were initially applied in theasymmetric transfer hydrogenation of acetophenone in aqueous/organic biphasic system.
本文基于温控相转移(TRPTC)催化概念，将聚乙氧基链引入到不对称催化剂配体中，设计、合成了两种具有温控功能的水溶性手性配体(Ⅰ和Ⅱ)，其结构如下：并把其应用到水／有机两相体系下苯乙酮的不对称氢转移反应，探索一条不对称催化剂分离回收的新途径。
2.
In this study, complex catalyst formed in situ by [RuCl_2(p-cymene)]_2 with novel thermoregulated Noyori ligand modified by polyether (MeOPEG-PsDPEN) was used in the asymmetric transfer hydrogenation of acetophenone in aqueous/cyclohexane biphasic system.
探索了新型聚醚修饰的温控Noyori配体(MeOPEG-PsDPEN)与[RuCl_2(p-cymene)]_2配位形成的配合物催化剂用于水/环已烷两相体系中苯乙酮不对称氢转移反应。
4) asymmetric transfer hydrogenation
不对称氢转移反应
1.
The asymmetric transfer hydrogenation using 2-propanol as the hydrogen source is a practical and versatile method for obtaining secondary alcohols because of the inexpensive reagents and operational simplicity.
考察了它们与过渡金属Ir和Rh形成的配合物在苯乙酮不对称氢转移反应中的催化活性和不对称诱导作用。
2.
The chiral third generation dendritic catalyst based on (1S,2R)-norephedrine could be readily re- covered and reused in asymmetric transfer hydrogenation for acetophenone, and could be used three runs with the almost maintained enantioselectivities.
以(1S,2R)-降麻黄碱为核心的第三代手性树状催化剂在对苯乙酮的不对称氢转移反应中可以方便的回收并循环使用。
3.
The synthetic conditions ofcompound 1,2 and 3 were investigated,and their asymmetric transfer hydrogenation with chiral catalyst(S,S)-Ru-TsDPEN(5)were studied in the paper.
本文以苯乙醇胺类药物福莫特罗、沙丁胺醇和拉贝洛尔的前手性酮中间体4-苄氧基-3-硝基-α-溴代苯乙酮(1)、2-溴代-1-(2,2-二甲基四氢-1,3-苯并二氧杂芑基)-6-乙酮(2)和5-溴乙酰水杨酰胺(3)为研究对象,对化合物1、2、3的合成工艺进行考察,并对它们在(S,S)-Ru-TsDPEN(5)催化下的不对称氢转移反应进行研究。
5) Asymmetric transfer hydrogenation reaction
不对称氢转移反应
1.
After consulting a lot of literatures, this dissertation, we describe the design and synthesis of a series ofβ–keto sulfones, and the realization of DKR of these substrates via asymmetric transfer hydrogenation reaction.
不对称氢转移反应是选择性地还原醛、酮及亚胺等化合物的重要方法之一,条件温和,操作简便。
6) asymmetric hydrogenation
不对称氢化
1.
Study on application of asymmetric hydrogenation by chiral phosphorous ligand catalyst;
手性膦配体催化剂在不对称氢化中的应用研究
2.
Synthesis and Asymmetric Hydrogenation of Novel Cyclic Enamides: (Z)-3-Arylidene-4-acyl-3, 4-dihydro-2H-benzoxazines;
含有苯并噁嗪骨架的环状烯酰胺类底物的合成及不对称氢化研究
3.
Trans-cyclohexane-backbone iridium complexes with different axial chirality were synthesized from(1R,2S)-2-(pyridin-2-yl)cyclohexanol,and their application in asymmetric hydrogenation of(2H-chromen-3-yl)methanols was investigated.
从(1R,2S)-环己烷吡啶醇出发,合成了具有不同轴手性的反式环己烷骨架铱络合物,并将其应用于3-羟甲基-2H-苯并吡喃的不对称氢化中。
补充资料：不对称硼氢化
分子式：
CAS号：
性质：应用硼氢化反应进行不对称合成。例如顺2-丁烯用二异松蒎基硼烷硼氢化，在碱性双氧水中氧化，可得光学纯度98％的2-丁醇。
CAS号：
性质：应用硼氢化反应进行不对称合成。例如顺2-丁烯用二异松蒎基硼烷硼氢化，在碱性双氧水中氧化，可得光学纯度98％的2-丁醇。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条