862789-58-0Relevant articles and documents
Stereoselective Catalytic Synthesis of Active Pharmaceutical Ingredients in Homemade 3D-Printed Mesoreactors
Rossi, Sergio,Porta, Riccardo,Brenna, Davide,Puglisi, Alessandra,Benaglia, Maurizio
supporting information, p. 4290 - 4294 (2017/04/03)
3D-printed flow reactors were designed, fabricated from different materials (PLA, HIPS, nylon), and used for a catalytic stereoselective Henry reaction. The use of readily prepared and tunable 3D-printed reactors enabled the rapid screening of devices with different sizes, shapes, and channel dimensions, aimed at the identification of the best-performing reactor setup. The optimized process afforded the products in high yields, moderate diastereoselectivity, and up to 90 % ee. The method was applied to the continuous-flow synthesis of biologically active chiral 1,2-amino alcohols (norephedrine, metaraminol, and methoxamine) through a two-step sequence combining the nitroaldol reaction with a hydrogenation. To highlight potential industrial applications of this method, a multistep continuous synthesis of norephedrine has been realized. The product was isolated without any intermediate purifications or solvent switches.
Rhodium(I) complexes containing 9,10-phenanthrenequinone-N-substituted thiosemicarbazone ligands: Synthesis, structure, DFT study and catalytic diastereoselective nitroaldol reaction studies
Anitha,Manikandan,Vijayan,Anbuselvi,Viswanathamurthi
, p. 244 - 251 (2015/06/22)
Abstract New rhodium(I) complexes [Rh(CO)(L)] (1-3) were prepared by the reaction of [RhCl(CO)(PPh3)2] with 9,10-phenanthrenequinone-N-substituted thiosemicarbazones (HL1-3) and characterized by elemental and spectral anal
Design of a chiral secondary amine ligand for copper-catalyzed anti -selective Henry reaction
Arai, Takayoshi,Joko, Akinori,Sato, Katsuya
supporting information, p. 209 - 214 (2015/02/19)
A series of chiral binaphthyl-containing diphenylethylenediamine (binaph-dpen) ligands was designed and synthesized for the copper-catalyzed asymmetric Henry reaction. The N-monobenzyl (S)-binaph-(R,R)-dpen ligand, with a secondary amine portion, promoted