7472-83-5Relevant articles and documents
Ba(OH)2 as Catalyst in Organic Reactions IV. Reaction Between Coumarin and Diethyl Malonate
Sinisterra, J. V.,Marinas, J. M.
, p. 111 - 122 (1986)
The reaction of diethyl malonate and coumarin catalyzed by an activated barium hydroxide catalyst (C-200) in a solid-liquid-system is described.No Michael addition takes place.An unusual nucleophilic addition-elimination process to the C = O bond of couma
Exploring bis-(amino)cyclopropenylidene as a non-covalent Br?nsted base catalyst in conjugate addition reactions
Singh, Gurdeep,Goswami, Prithwish,Vijaya Anand, Ramasamy
supporting information, p. 384 - 388 (2018/02/06)
Bis-(amino)cyclopropenylidene has been utilised as a non-covalent Br?nsted base catalyst in the 1,6-conjugate addition of carbon nucleophiles to p-QMs. This protocol makes it possible to access unsymmetrical diaryl- and triarylmethanes in good to excellen
On-water magnetic NiFe2O4 nanoparticle-catalyzed Michael additions of active methylene compounds, aromatic/aliphatic amines, alcohols and thiols to conjugated alkenes
Payra, Soumen,Saha, Arijit,Banerjee, Subhash
, p. 95951 - 95956 (2016/10/25)
Here, we have demonstrated the Michael addition of active methylene compounds, aromatic/aliphatic amines, thiols and alcohols to conjugated alkenes using magnetic nano-NiFe2O4 as reusable catalyst in water. Nano-NiFe2O4 efficiently catalyzed the formation of C-C and C-X (X = N, S, O etc.) bond through 1,4-addition reactions.
Highly enantioselective Michael addition of diethyl malonate to chalcones catalyzed by cinchona alkaloids-derivatived bifunctional tertiary amine-thioureas bearing multiple hydrogen-bonding donors
Liu, Yulong,Wang, Xie,Wang, Xiaoyun,He, Wei
supporting information, p. 3163 - 3166 (2014/05/06)
Chalcones are still challenge substrates in Michael reactions, and only limited success has been achieved. This work describes a highly enantioselective Michael addition of diethyl malonate with chalcones catalyzed by cinchona alkaloids-derivatived bifunctional tertiary amine-thioureas bearing multiple hydrogen-bonding donors.