5515-83-3Relevant articles and documents
MANUFACTURING METHOD OF N-SUBSTITUTED (METH)ACRYLAMIDE
-
Paragraph 0053; 0056, (2019/05/25)
To provide a method for industrially manufacturing high purity β-alkoxypropionic acid amide, β-aminopropionic acid amide and N-substituted (meth)acrylamide at high yield using (meth)acrylic acid ester as a starting material.SOLUTION: By conducting an amidation reaction with amine in the presence of a metal complex as a catalyst using β-substituted propionic acid ester which is a product material of a Michael addition reaction of (meth)acrylic acid ester and alcohol or amine, β-substituted propionic acid amide is obtained. Further by conducting a thermal decomposition reaction of the β-substituted propionic acid amide in the presence of the metal complex, and eliminating the alcohol or the amine, objective compound N-substituted (meth)acrylamide is obtained.SELECTED DRAWING: None
Synthesis of a crosslinked polymer with a benzyl(triphenyl)phosphonium ionic liquid moiety and its catalytic activity
Liang, Xuezheng
, p. 99448 - 99453 (2015/12/04)
A novel crosslinked polymer with a benzyl(triphenyl)phosphonium ionic liquid moiety was synthesized from triphenylphosphine and p-xylylene dichloride. The bulky IL molecules were inlaid in the polymeric framework, which avoided pore blocking and IL moiety release. The polymer had a high BET surface area and accessible active sites. The polymer was applied to catalyze the aza-Michael additions and gave average yields over 95.0% in several minutes. The polymer had several advantages such as high BET surface area, high activity and high stability, which hold great potential for green chemical processes.
Ecofriendly and efficient procedure for hetero-Michael addition reactions with an acidic ionic liquid as catalyst and reaction medium
Dabiri, Minoo,Salehi, Peyman,Bahramnejad, Mahboobeh,Baghbanzadeh, Mostafa
experimental part, p. 109 - 112 (2012/06/30)
1-Methylimidazolium trifluoroacetate ([Hmim]-TFA) is reported as a cost-effective catalyst for a simple and environmentally benign hetero-Michael reaction. [Hmim]TFA works both as reaction medium and catalyst. The reaction is applicable to various aromatic sulfur and nitrogen nucleophiles. This method has advantages such as high yields, short reaction time, and simple workup. The catalyst could be recycled several times without any loss of activity.
