Stereoselective aryl migration reactionsfromsulfur in sulfonates and sulfonamides to C-centered radicals are reported. The 1,5-aryl migration fromsulfur to differently substituted C-centered radicals could be performed with high yields and selectivities. Functionalized aryl groups could also be transferred by this new method. A model to explain the stereochemical outcome of the reaction is presented and some
Triflic Acid Mediated Dealkylative Lactonisation via NMR-Observable Alkyloxonium Intermediates
作者:M. Paz Muñoz、Guy C. Lloyd-Jones
DOI:10.1002/ejoc.200800970
日期:2009.2
self-catalysed reaction with the pent-4-enoate to generate an oxonium triflate intermediate (rate ˜ kobsd.[TfOH]2[ester]1), possibly via the dimer (TfOH)2. The oxonium triflate intermediate then evolves to the ?-lactone according to unimolecular kinetics, liberating MeOTf in an SNi reaction. 2H-labelling experiments with TfOD suggest that the acid protonates the carbonyl moiety of the ester, with subsequent intramolecular
[EN] BICYCLIC HETEROARENES AND METHODS OF THEIR USE<br/>[FR] HÉTÉROARÈNES BICYCLIQUES ET LEURS PROCÉDÉS D'UTILISATION
申请人:YUMANITY THERAPEUTICS INC
公开号:WO2021247862A1
公开(公告)日:2021-12-09
Disclosed are compounds useful in the treatment of neurological disorders. The compounds described herein, alone or in combination with other pharmaceutically active agents, can be used for treating or preventing neurological diseases.