1) Asymmetric dihydroxylation of olefins
烯烃的不对称双羟基化
3) asymmetric dihydroxylation
不对称双羟基化反应
1.
N,N'-Diferrocenylmethyl-(1S,2S)-1,2-diphenylethanediamine was synthesized by two steps from (1S,2S)-1,2-diphenylethanediamine and ferrocenealdehyde, and has been used as chiral ligand to asymmetric dihydroxylation of olefins.
(1S,2S)-1,2-二苯基乙二胺和甲酰基二茂铁经缩合和还原两步反应,以90%的产率合成了N,N'-二茂铁甲基-(1S,2S)-1,2-二苯基乙二胺,并以其为配体催化烯烃的不对称双羟基化反应,获得了较高的对映选择性(71%～86%ee)。
4) dissymmetric alkene
不对称烯烃
1.
An addition reaction about dissymmetric alkene is discussed through an application of the principle on soft hard acids and bases in the paper, which also points out the nature in the dissymmetric alkene addition reaction, and gives an analysis of several circumstances appeared in this addition reaction.
运用软硬酸碱原理讨论不对称烯烃的加成反应，指出了马氏规则在不对称烯烃加成中的本质，并对其加成反应中的几种情况进行分析，从而达到对马氏规则的深入认识和理
5) asymmetric dihydroxylation
不对称双羟化
1.
The use of(QD)_2 PYDZ in asymmetric dihydroxylation(AD)of olelfins provided the corresponding chiral vicinal diols with 88～95%chemical yield and the values of enantiomeric excess(ess)are between 75% and 99%.
烯烃不对称双羟化反应(Asymmetric D ihydroxylation,简称AD反应)和不对称氨羟化反应(Asymmet-ric Am inohydroxylation,简称AA反应)是获得手性连二醇和手性β-氨基醇的最简便的方法[1]。
2.
A series of enantiopure β-amino alcohols were synthesized from the corresponding diols pro- duced by Sharpless asymmetric dihydroxylation, cyclization of diols, azide opening of epoxides, and cata- lytic hydrogenation of the resulting azido alcohols.
在手性配体1,4-双(9-O-奎宁)-2,3-二氮杂萘[(QN)2PHAL]存在下,通过烯烃的Sharpless不对称双羟化、环化、亲核开环和催化氢化等步骤方便地合成了手性β-氨基醇。
3.
Moreover, the resin-bound OsO 4 exhibited excellent catalytic activity in the asymmetric dihydroxylation of olefins and was easily recovered and reused in five consecutive reactions, without significant decrease in activity.
合成了在烯烃不对称双羟化反应中可回收和重复使用的TentaGel支载的OsO4催化剂 。
6) Sharpless' asymmetric dihydroxylation
sharpless不对称双羟化
1.
Methods Sharpless′ asymmetric dihydroxylation was employed to construct the 3-hydroxychroman.
方法 运用sharpless不对称双羟化构筑手性的 3 羟基苯并二氢吡喃。
补充资料：不对称羟基化
分子式：
CAS号：
性质：应用羟基化反应进行不对称合成。
CAS号：
性质：应用羟基化反应进行不对称合成。
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