Access to 3,3′-disubstituted peroxyoxindole derivatives and α-peroxyamides <i>via</i> azaoxyallyl cation-guided addition of hydroperoxides
作者:Tishyasoumya Bera、Bandana Singh、Manoranjan Jana、Jaideep Saha
DOI:10.1039/d2cc02378d
日期:——
The design and development of an azaoxyallyl cation templated strategy for rapid access to novel peroxide derivatives such as 3,3′-disubstituted peroxyoxindoles and α-peroxyamides.
Palladium-Catalyzed Asymmetric Decarboxylation of 5-Vinyloxazolidine-2,4-Diones Triggering the Dearomatization of Electron-Deficient Indoles for the Synthesis of Chiral Highly Functionalized Pyrroloindolines
of a chiral phosphoramidite ligand and Pd2(dba)3·CHCl3 causes the decarboxylation of 5-vinyloxazolidine-2,4-diones to generate amide-containing aza-π-allylpalladium 1,3-dipole intermediates, which are capable of triggering the dearomatization of 3-nitroindoles for diastereo- and enantioselective [3+2] cycloaddition, leading to the formation of a series of highlyfunctionalizedpyrroloindolines containing
Palladium-catalyzed enantioselective decarboxylation of vinyl cyclic carbamates: generation of amide-based aza-1,3-dipoles and application to asymmetric 1,3-dipolar cycloaddition
containing an oxazolidine-2,4‑dione fragment and used them as reactive precursors for in situ generation of amide-based aza-π-allylpalladium 1,3-dipoles, which could be applied to asymmetric decarboxylative 1,3-dipolarcycloaddition with different types of dipolarophiles containing C=C, C=N, and C=O double bonds. This strategy provides an opportunity for the synthesis of previously unusual structures, such