An effective aza-Michael addition of aromatic amines to electron-deficient alkenes in alkaline Al2O3
作者:Xin Ai、Xin Wang、Jin-ming Liu、Ze-mei Ge、Tie-ming Cheng、Run-tao Li
DOI:10.1016/j.tet.2010.05.054
日期:2010.7
Aza-Michaeladdition of aromatic or aliphatic amines with various electron-deficient alkenes was performed using alkaline Al2O3 as solid media at room temperature afforded the corresponding Michael addition products in good to excellent yields. The alkaline Al2O3 can be easily recovered and reused.
在室温下,使用碱性Al 2 O 3作为固体介质,对芳香族或脂肪族胺与各种缺电子的烯烃进行Aza-Michael加成反应,得到了相应的Michael加成产物,收率良好至极佳。碱性Al 2 O 3可以容易地回收和再利用。
Hydroamination and Alcoholysis of Acrylonitrile Promoted by the Pincer Complex {κ<sup><i>P</i></sup>,κ<sup><i>C</i></sup>,κ<sup><i>P</i></sup>-2,6-(Ph<sub>2</sub>PO)<sub>2</sub>C<sub>6</sub>H<sub>3</sub>}Ni(OSO<sub>2</sub>CF<sub>3</sub>)
作者:Abderrahmen B. Salah、Caroline Offenstein、Davit Zargarian
DOI:10.1021/om200549p
日期:2011.10.24
describes the catalyticactivity of the pincer-type complex κP,κC,κP-2,6-(Ph2PO)2C6H3}Ni(OSO2CF3) (1) in the anti-Markovnikov addition of aliphatic and aromatic amines and alcohols to acrylonitrile, crotonitrile, and methacrylonitrile. The influence of additives on the catalyticactivities was investigated, and it was found that substoichiometric quantities of water promoted the C–N bond forming reactions
Green synthesis of CuO nanoparticles using <i>Lantana camara</i> flower extract and their potential catalytic activity towards the aza-Michael reaction
作者:Rakesh Chowdhury、Aslam Khan、Md. Harunar Rashid
DOI:10.1039/d0ra01479f
日期:——
An easy and convenient synthesis process is reported for the synthesis of CuO nanoparticles using plant extract for use as a catalyst in the aza-Michael addition reaction.
Boric Acid / Glycerol as an Efficient Catalyst for Synthesis of Thiomorpholine 1,1-Dioxide by Double Michael Addition Reaction in Water
作者:Azim Ziyaei Halimehjnai、Seyedmorteza Hosseyni、Hadi Gholami、Mohammed M. Hashemi
DOI:10.1080/00397911.2011.594930
日期:2013.1
Abstract Thiomorpholine 1,1-dioxides were prepared with double Michael addition reaction of aromatic amines to divinyl sulfone catalyzed by boricacid / glycerol in water. This catalyst system was also used for the Michael addition reaction of aromatic amines to electron-deficient alkenes. The reaction is simple and green and gives good to excellent yields. GRAPHICAL ABSTRACT
12-Tungstophosphoric acid (H 3 PW 12 O 40 )has been found to be an efficient and recyclable catalyst in promotingroom temperature Michael additions of amines and aryl thiols to α,β-unsaturated estersand acrylonitrile in water to afford the corresponding saturatedamines in good to excellent yields.