802-49-3Relevant articles and documents
Tuning Microenvironment of Quaternary Ammonium Salt and Tertiary Amine Bifunctionalized Polyacrylonitrile Fiber for Cooperatively Catalyzed Aza-Michael Addition
Yuan, Xueyu,Du, Huimin,Zhao, Jingyan,Chima, Anyaegbu Ejike,Ma, Ning,Tao, Minli,Zhang, Wenqin
, p. 832 - 843 (2020/08/10)
A series of novel polyacrylonitrile fiber catalysts modified with different ratio of quaternary ammonium salt (QA) to tertiary amine (TA) were screened for heterogeneously catalyzed aza-Michael addition in water. The best catalyst was found to be PAN
Graphene oxide as a catalyst for one-pot sequential aldol coupling/aza-Michael addition of amines to chalcones through in situ generation of Michael acceptors under neat conditions
Khalili, Dariush,Lavian, Salime,Moayyed, Mohammadesmaeil
, (2019/12/25)
Graphene oxide (GO) in conjunction with tetra n-butyl ammonium bromide (TBAB) was found to function as an efficient catalyst for one-pot sequential aldol coupling/aza-Michael addition of amines to chalcones in a single reaction vessel. Benzaldehydes and acetophenone were coupled in situ to produce their corresponding chalcones which underwent a subsequent aza-Michael addition under solvent-free condition. This procedure avoids the use of precious metals and the heterogeneous nature of the GO simplifies purification and isolation of the products by simple filtration of the catalyst.
An uncommon use of irradiated flavins: Br?nsted acid catalysis
Arakawa, Yukihiro,Mihara, Tomohiro,Fujii, Hiroki,Minagawa, Keiji,Imada, Yasushi
supporting information, p. 5661 - 5664 (2020/06/09)
We present that thioacetalization of aldehydes can be induced by blue light irradiation in the presence of a catalytic amount of riboflavin tetraacetate (RFTA) under aerobic conditions. Several control experiments have suggested that the reaction is more
