Polymer-Incarcerated Gold−Palladium Nanoclusters with Boron on Carbon: A Mild and Efficient Catalyst for the Sequential Aerobic Oxidation−Michael Addition of 1,3-Dicarbonyl Compounds to Allylic Alcohols
作者:Woo-Jin Yoo、Hiroyuki Miyamura、Shu̅ Kobayashi
DOI:10.1021/ja110142y
日期:2011.3.9
immobilized tetravalent boron catalyst for the Michael reaction. In addition, we found bimetallic Au-Pd nanoclusters to be particularly effective for the aerobicoxidation of allylic alcoholsunder base- and water-free conditions. The ability to conduct the reaction under relatively neutral and anhydrous conditions proved to be key in maintaining good catalyst activity during recovery and reuse of the catalyst
Surface-mediated solid phase michael reaction: dramatic acceleration on alumina
作者:Brindaban C. Ranu、Sanjay Bhar、Dipak C. Sarkar
DOI:10.1016/0040-4039(91)85093-k
日期:1991.6
The Michael reaction of several β-dicarbonyl compounds, ethyl cyanoacetate, and diethyl malonate as donors with methyl vinyl ketone, acrolein and methyl acrylate as acceptors are carried out very efficiently on Al2O3 surface without any solvent.
几种β-二羰基化合物,氰基乙酸乙酯和丙二酸二乙酯(作为供体)与甲基乙烯基酮,丙烯醛和丙烯酸甲酯作为受体的迈克尔反应非常有效地在Al 2 O 3表面上进行,而无需任何溶剂。
Metal-Free Michael-Addition-Initiated Three-Component Reaction for the Regioselective Synthesis of Highly Functionalized Pyridines: Scope, Mechanistic Investigations and Applications
and completely regioselective three-componentsynthesis of highly functionalizedpyridines from 1,3-dicarbonyl derivatives and Michael acceptors has been achieved. Activated Michael acceptors, that is, β,γ-unsaturated α-oxo carbonyl derivatives, were utilized, allowing substitution at the 4-position and remarkable functional diversity at the 2-position of the pyridine ring. The scope and limitations
Cerium(III) chloride heptahydrate in the presence of sodium iodide catalyses the Michael addition of 1,3-dicarbonyl compounds to α,β-unsaturated ketones and α,β-unsaturated aldehydes with extraordinary efficiency. The very mild conditions allow high chemoselectivity as shown by the absence of the typical side reactions, which can be observed in the conventional base-catalyzed processes. More interestingly
Ionic Liquid as Catalyst and Reaction Medium. The Dramatic Influence of a Task-Specific Ionic Liquid, [bmIm]OH, in Michael Addition of Active Methylene Compounds to Conjugated Ketones, Carboxylic Esters, and Nitriles
作者:Brindaban C. Ranu、Subhash Banerjee
DOI:10.1021/ol051004h
日期:2005.7.1
[reaction: see text] A task-specific ionicliquid, [bmIm]OH, has been introduced as a catalyst and as a reactionmedium in Michael addition. Very interestingly, although the addition to alpha,beta-unsaturated ketones proceeds in the usual way, giving the monoaddition products, this ionicliquid always drives the reaction of open-chain 1,3-dicarbonyl compounds with alpha,beta-unsaturated esters and