21759-74-0Relevant articles and documents
Carbonylation of silylated hydroxymethyl aziridines to β-lactams
Davoli, Paolo,Moretti, Irene,Prati, Fabio,Alper, Howard
, p. 518 - 521 (1999)
Functionalized β-lactams are synthesized by carbonylative ring expansion of silylated hydroxymethyl aziridines catalyzed by dicobalt octacarbonyl, a process that proceeds with inversion of configuration. Ring opening and elimination occurs on attempted carbonylation of aziridine carboxylates.
Highly efficient and facile synthesis of β-enaminones catalyzed by diphenylammonium triflate
Zhao, Ting-Ting,Song, Jiang-Long,Hong, Feng-Qing,Xia, Jian-Sheng,Li, Jian-Jun
, p. 2857 - 2868 (2019/08/21)
Abstract: The catalytic performance of diphenylammonium triflates as an organocatalyst in the synthesis of β-enaminones from various substituted β-diketones and amides (or amines) were evaluated. A wide range of β-enaminones were efficiently synthesized in good to excellent yields under mild reaction conditions. Applying diphenylammonium triflate (DPAT) as catalyst makes this protocol cost-effective, low corrosive and easy to handle. Graphic abstract: [Figure not available: see fulltext.].
Transformation of One-Dimensional Achiral Structure to Three-Dimensional Chiral Structure: Mechanistic Study and Catalytic Activities of Chiral Structure
Rao, Purna Chandra,Chaudhary, Sonu Pratap,Kuznetsov, Denis,Mandal, Sukhendu
supporting information, p. 12669 - 12674 (2016/12/26)
We have isolated two copper-based coordination polymers through solvent diffusion and solvothermal methods using copper salt, furan dicarboxylic acid (FDC), 4,4′-bipyridine (bpy) in MeOH/ethylene glycol, and water solvents. Compound 1 is adopting P21/c space group and adopts a one-dimensional wirelike structure with a free carboxylate anion. Compound 2 crystallizes in chiral space group P65. This is a three-dimensional structure with helical chains. This helicity might be the reason for chiral generation and symmetry breaking. We have converted compound 1 to compound 2 using grinding, followed by a solvothermal method. The circular dichroism data of 2 showed that it is an enantioenriched compound. We have shown that compound 2 is a very good catalyst for chemo- and regioselective enamination reaction and for azide-alkyne Huisgen cycloaddition, respectively.