2525-74-8Relevant academic research and scientific papers
Exploring Partners for the Domino α-Arylation/Michael Addition Reaction Leading to Tetrahydroisoquinolines
Solé, Daniel,Pérez-Janer, Ferran,García-Rodeja, Yago,Fernández, Israel
, p. 799 - 805 (2017)
Sulfonates, sulfonamides, and phosphonates have proven useful nucleophiles for palladium-catalyzed intramolecular α-arylation reactions leading to tetrahydroisoquinolines. Although the sulfonate α-arylation reaction can be successfully combined in a domino process with a broad range of Michael acceptors, only vinyl sulfones can be used in Michael additions when starting from sulfonamides. No domino process was developed with the phosphonate derivative. DFT calculations were carried out to gain more insights into the experimental differences observed in the reactions involving these substrates.
Diastereoselective Monofluorocyclopropanation Using Fluoromethylsulfonium Salts
Melngaile, Renate,Sperga, Arturs,Baldridge, Kim K.,Veliks, Janis
supporting information, p. 7174 - 7178 (2019/09/12)
Diarylfluoromethylsulfonium salts, alternatives to freons or advanced fluorinated building blocks, are bench stable and easy-to-use sources of direct fluoromethylene (:CHF) transfer to alkenes. These salts enabled development of a trans-selective monofluorinated Johnson-Corey-Chaykovsky reaction with vinyl sulfones or vinyl sulfonamides to access synthetically challenging monofluorocyclopropane scaffolds. The described method offers rapid access to monofluorinated cyclopropane building blocks with further functionalization opportunities to deliver more complex synthetic targets diastereoselectively.
NOVEL IMIDAZOLIDINE DERIVATIVES
-
Page/Page column 66-67, (2010/10/19)
Compounds represented by the general formula (I); and drugs and medicinal compositions, containing the compounds: (I) wherein n is an integer of 1 to 20; Q is (II) or (III) A is cyano or the like; B is hydrogen, halogeno, or the like; X1 and X
