Copper(II) bromide-catalyzed conjugate addition of furans to α,β-unsaturated carbonyl compounds
作者:Alexander A. Fadeev、Maxim G. Uchuskin、Igor V. Trushkov、Anton S. Makarov
DOI:10.1007/s10593-018-2206-1
日期:2017.12
A simple method for the synthesis of 2-(3-oxoalkyl)furan derivatives based on conjugate addition of 2-substituted furans to various α,β-unsaturated carbonyl compounds in the presence of copper(II) bromide as catalyst was developed.
We evaluated the influence of solvent on the alumina‐promoted C3‐alkylation of indoles with α,β‐unsaturatedketones. We found that lipophilic solvents were generally superior to hydrophilic ones with hexanes offering the 3‐alkyl indole products in high yields. Thus, we demonstrate an inexpensive and procedurally simple new process that pairs acidic alumina with hexanes to achieve this important Michael
Supported cobalt complex-catalysed conjugate addition of indoles, amines and thiols to α,β-unsaturated compounds
作者:Fatemeh Rajabi、Sepideh Razavi、Rafael Luque
DOI:10.1039/b926599f
日期:——
A highly active and reusable supported Co(II) complex on SBA-15 shows an excellent activity and selectivity to target products in aza- and thia-Michael conjugate additions of indoles, amines and thiols to α,β-unsaturated compounds undersolventless mild reactionconditions. The Co-catalyst was also highly reusable and comparably more active than related catalysts in the reaction.
Conjugate addition of indoles and thiols with electron-deficient olefins catalyzed by Bi(OTf)3
作者:M.Mujahid Alam、Ravi Varala、Srinivas R. Adapa
DOI:10.1016/s0040-4039(03)01089-x
日期:2003.6
Conjugateaddition of indoles and thiols with a variety of electron-deficient olefins mediated by a catalytic amount of Bi(OTf)3 at ambient temperature to afford the corresponding Michael adducts in good to excellent yields with high selectivity is reported.
Sulfonic acid-functionalized magnetic nanoparticles as a recyclable and eco-friendly catalyst for atom economical Michael addition reactions and bis indolyl methane synthesis
作者:Hajar Mahmoudi、Abbas Ali Jafari、Soroosh Saeedi、Habib Firouzabadi
DOI:10.1039/c4ra11605d
日期:——
Sulfonic acid-functionalized magnetic nanoparticles as a recyclable and eco-friendly catalyst for atom economical Michael addition reaction and bis indolyl methane synthesis.