87307-58-2Relevant academic research and scientific papers
Methoxycarbonyl migration in 3-methylene-1,4-cyclohexadienes. An extension of the von Auwers rearrangement This article is dedicated to Professor Neil Garg, recipient of the 2015 Tetrahedron Young Investigator award
Boumediene, Mehdi,Guignard, Rapha?l F.,Zard, Samir Z.
, p. 3678 - 3686 (2016)
Upon heating, 3-methylene-1,4-cyclohexadienes possessing an alkoxycarbonyl substituent in position 6 undergo rearrangement and concomitant aromatization to give the corresponding arylacetates. This transformation represents a modification of the von Auwers rearrangement and proceeds by a radical chain mechanism. The intermediate alkoxycarbonyl radical can be intercepted allowing further useful synthetic variations.
Silica gel-mediated catalyst-free and solvent-free Michael addition of 1,3-dicarbonyl compounds to highly toxic methyl vinyl ketone without volatilization
Tanemura, Kiyoshi,Rohand, Taoufik
supporting information, (2020/06/28)
Silica gel-mediated Michael addition of 1,3-dicarbonyl compounds to methyl vinyl ketone (MVK) and ethyl vinyl ketone (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 without the decrease of the yields.
Zeolite mediated Michael addition of 1,3-dicarbonyl compounds and thiols
Sreekumar,Rugmini,Padmakumar, Raghavakaimal
, p. 6557 - 6560 (2007/10/03)
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.
Surface-Mediated Phase Reaction: Dramatic Improvement of Michael Reaction on the Surface of Alumina
Ranu, Brindaban C.,Bhar, Sanjay
, p. 1327 - 1332 (2007/10/02)
The Michael reaction of several 1,3-dicarbonyl compounds, nitroalkanes, and thiols as donors with methl vinyl ketone, acrolein, methyl acrylate, methyl methacrylate, and mesityl oxide as acceptors on the surface of alumina without any solvent proceed very efficiently and furnish high yield of adducts. Key Words: Michael reaction; Al2O3; dramatic improvement
Surface-mediated solid phase michael reaction: Dramatic acceleration on alumina
Ranu, Brindaban C.,Bhar, Sanjay,Sarkar, Dipak C.
, p. 2811 - 2812 (2007/10/02)
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.
Organic Reactions at High Pressure. A Robinson Annulation Sequence Initiated by Michael Addition of Activated Cycloalkanones with Hindered Enones
Dauben, William G.,Bunce, Richard A.
, p. 4642 - 4648 (2007/10/02)
Activated cycloalkanones (ring size = five, six, seven) undergo Michael addition to β,β-disubstituted enones and subsequent aldol cyclization at 15 kbar (1.5 GPa) pressure in acetonitrile containing triethylamine or 1,5-diazabicyclonon-5-ene to aff
