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1)  asymmetry proton shift reaction
不对称氢质子转移化反应
2)  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。
3)  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。
4)  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。
5)  asymmetric hydrogenation
不对称氢化反应
1.
The recent advances in the asymmetric hydrogenation of heteroaromatic compounds with ho- mogeneous and heterogeneous systems were reviewed.
对均相和非均相体系中芳香杂环化合物的不对称氢化反应进行了归纳总结。
6)  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 。
补充资料:质子转移反应
分子式:
CAS号:

性质:质子给体和受体间有质子转移的反应,如HA+B-→HB+A-,故也称酸碱反应。其反应机理有两类。(1)质子直接转移,大致有三步:酸碱碰撞络合物的形成,质子通过水合结构与碱结合,水合结构的破裂。(2)有羟离子参与的反应,这类反应的特点是快速,属扩散控制,一般用弛豫技术及核磁共振技术研究其反应动力学行为及规律。

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