说明:双击或选中下面任意单词,将显示该词的音标、读音、翻译等;选中中文或多个词,将显示翻译。
您的位置:首页 -> 词典 -> 不对称硅氢化
1)  asymmetric hydrosilylation
不对称硅氢化
1.
Recent advances in asymmetric hydrosilylation of prochiral carbonyl compounds catalyzed by chiral transition metal complexes are reviewed in this paper with 47 references.
评述了近年来手性金属配合物催化的前手性羰基化合物的不对称硅氢化反应研究进展。
2.
A gas chromatographic method to determine the conversion of asymmetric hydrosilylation of acetophenone has been established.
建立了由气相色谱法测定苯乙酮不对称硅氢化反应转化率的定量方法,操作简便、迅速,重复性和精密度较好,多个样品各重复6次的变异系数均小于1%,且结果与1HNMR法测定结果一致。
3.
The catalysts, prepared in -situ with ligand A and [ Rh ( COD ) C1]2, were used to catalyze the asymmetric hydrosilylation of acetophenone and several other aromatic ketones.
将其与[Rh(COD)Cl]_2制备的原位催化剂用于催化苯乙酮及其它几种芳香酮的不对称硅氢化反应,化学收率达90%左右,光学纯度达80%e。
2)  asymmetric hydrosilylation
不对称氢化硅烷化
1.
The in-situ prepared catalyst from (A) with [Rh(COD)CI]2 (COD:cyclooctadiene) has been used to catalyze the asymmetric hydrosilylation of acetophenone.
不对称氢化硅烷化可实现由含碳碳或碳杂双键的化合物合成手性醇和手性腹,在石油化工、药物合成、生物碱等生物活性物质的合成等领域具有潜在的应用价值。
2.
3 was used as a catalyst in asymmetric hydrosilylation(trichlorosilane as a reducer) of α-ketiminoesters to obtain chiral α-amino esters in high yields and moderate enantioselectivities.
3用于催化α-酮亚胺基酯的不对称氢化硅烷化反应(三氯硅烷为还原剂),可得到高收率和中等对映选择性的手性α-氨基酸酯。
3)  asymmetric hydrosilation
不对称硅氢化反应
1.
The in-situ catalyst prepared with this ligand and Rh(COD)Cl 2 is used to catalyze the asymmetric hydrosilation of accetophenone.
由L—半胱氨酸与2—吡啶甲醛缩合制备了手性配体2—(2—吡啶基)—4—羧基—1,3—噻唑烷,并将其与〔Rh(COD)Cl〕2制备的在位催化剂用于苯乙酮的催化不对称硅氢化反应,可使该反应的化学产率高达90%,光学收率达到797%e。
4)  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。
5)  enantioselective hydrogenation
不对称氢化
1.
The research progress in enantioselective hydrogenation catalyzed by heterogeneous catalysts is reviewed.
特别是对最近几年来两个典型的多相不对称催化氢化体系即酒石酸盐修饰镍催化剂催化 β-酮酸酯的不对称氢化反应体系和金鸡纳生物碱修饰铂催化剂催化 α-酮酸酯的不对称氢化反应体系进行了详细的介绍和讨论 ,同时展望了多相不对称催化氢化反应研究的前景。
6)  catalytic asymmetric hydrogenation
不对称催化氢化
1.
Recent progress in catalytic asymmetric hydrogenation of β-aminoacrylic acid ester derivatives is described, and various effects in the reactivity and enantioselectivity of hydrogenation reactions are discussed.
综述了近年来β-胺基丙烯酸酯衍生物的不对称催化氢化反应的研究工作,并讨论了影响氢化反应活性与对映选择性的各种因素。
2.
Induced by a small amount of chiral catalysts, H_2 is added to the unsaturated double bond, and the chiralmolecule is efficiently obtained in this catalytic asymmetric hydrogenation.
在不对称催化氢化过程中起关键作用的是手性催化剂的结构,包括手性膦配体和中心过渡金属。
补充资料:硅氢化
分子式:
CAS号:

性质:硅的氢化物加到不饱和有机化合物上,从而生成各种有机硅化合物的反应。反应一般采用三种方式:(1)与烯烃或炔烃在加热下直接合成。(2)利用紫外线、γ射线或有机过氧化物自由基引发。(3)用过渡金属及其配位化合物催化反应条件温和,选择性好,产率高。硅氢化反应已广泛用于有机合成,在天然产物合成中还可用作保护基。

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