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The Front Cover illustrates the role of Pd catalysis on the stereoconvergent conversion of cis and trans cyclopentenyl carbonates into the corresponding cis nucleosides by Tsuji–Trost reaction. In the cover image, a policeman with a “Pd” bib closes a highway lane, indicating to a car an alternative direction, which is shared with an incoming truck. The cartoon has been realized by D. D'Alonzo. More...
A simple, metal‐free, and green approach has been established for N−H functionalization of sulfoximines under mild reaction conditions to offer sulfoximinated‐oxime conjugates. The reaction works well in EtOH at room temperature and proceeds smoothly without using any base or expensive ligands. This protocol has been applied on various aryl‐, heteroaryl‐ sulfoximines as well as on variety of chloro‐oximes...
Herein, we report a metal‐free approach to construct C−X (X=S, Se) bonds with the broadly available N‐hydroxyphthalimide esters and disulfides/diselenides (Ar2X2, X=S or Se) using bis(pinacolato)diboron as the reductant. Density functional theory calculations and control experiments reveal that such a C−X bond formation process is reductive decarboxylation mediated from pyridine‐boryl radical to yield...