42313-52-0Relevant articles and documents
Polymer coated magnetically separable organocatalyst for C[sbnd]N bond formation via aza-Michael addition
Panwar, Vineeta,Ray, Siddharth S.,Jain, Suman L.
, p. 5026 - 5032 (2016/11/02)
A polyacrylamide coated magnetite (PAM@MNP) catalyst was synthesized by following a two step approach involving the reaction of magnetite (Fe3O4) particles with coupling agent 3-(trimethoxysilyl)propyl methacrylate followed by grafting of acrylamide and subsequent polymerization via surface initiated radical polymerization technique. The synthesized organocatalyst was used for a one-pot aza-Michael addition reaction of amines with electron deficient alkenes to give β-amino carbonyls. The magnetic properties of the synthesized organocatalyst provide it a facile recovery by external magnet which eliminates the problems arising during catalyst separation by conventional filtration.
Tetrahydroquinolines by lewis acid-promoted friedel-crafts cyclizations
Bunce, Richard A.,Cain, Nicholas R.,Cooper, John G.
, p. 28 - 43 (2013/03/14)
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Squaric acid as an impressive organocatalyst for Michael addition in water
Azizi, Najmadin,Saki, Elham,Edrisi, Mahtab
experimental part, p. 973 - 977 (2012/05/20)
A simple, green, and environmentally benign protocol for squaric acid (5 mg) catalyst conjugate addition of aromatic amines and thiols to unsaturated carbonyl compounds in water in good to excellent yields is developed. The advantages of low sensitivity toward moisture and oxygen, high tolerance of different functional groups, green reaction media and efficient recyclability make this organocatalyst suitable for both laboratory and industrial scale synthesis of β-substituted carbonyls under very mild conditions.