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。
Zeolite mediated michael addition of 1,3-dicarbonyl compounds and thiols
Zeolites, an environmentally attractive solid catalyst, proves to be an efficient catalyst for Michael addition of several 1, 3-dicarbonyl compounds and thiols as donors with methyl vinyl ketone, acrolein and methyl acrylate as acceptors without any solvent are described.
Silica gel-mediated catalyst-free and solvent-free Michael addition of 1,3-dicarbonyl compounds to highly toxic methyl vinyl ketone without volatilization
作者:Kiyoshi Tanemura、Taoufik Rohand
DOI:10.1016/j.tetlet.2020.152142
日期:2020.7
Silica gel-mediated Michaeladdition of 1,3-dicarbonyl compounds to methyl vinylketone (MVK) and ethyl vinylketone (EVK) was carried out to give the corresponding adducts in quite excellent yields. The reactions could be carried out without any catalysts and solvents. In addition, highly toxic MVK and EVK could be employed without significant volatilization. Silica gel could be recycled five times
Surface-mediated solid phase reaction: Dramatic improvement of Michael reaction on the surface of alumina
作者:Brindaban C. Ranu、Sanjay Bhar
DOI:10.1016/s0040-4020(01)90794-x
日期:1992.1
The Michael reaction of several 1,3-dicarbonyl compounds, nitroalkanes, and thiols as donors with methyl vinyl ketone, acrolein, methyl acrylate, methyl methacrylate, and mesityl oxide as acceptors on the surface of alumina without any solvent proceed very effeciently and furnish high yield of adducts.
Organic reactions at high pressure. A Robinson annulation sequence initiated by Michael addition of activated cycloalkanones with hindered enones