双吡啶鎓盐7b的去质子化可提供双吡啶鎓亚叉基10,这是一种非常强大的中性有机两电子给体[E1 / 2(DMF)=-1.13 V vs Ag / AgCl / KCl(sat)],大概是通过吡啶基亚苄基8进行的。供体10还原了芳基碘化物和溴化物以优异的收率得到芳基阴离子,并且还非常有效地还原性裂解选定的苯基烷基砜。
双吡啶鎓盐7b的去质子化可提供双吡啶鎓亚叉基10,这是一种非常强大的中性有机两电子给体[E1 / 2(DMF)=-1.13 V vs Ag / AgCl / KCl(sat)],大概是通过吡啶基亚苄基8进行的。供体10还原了芳基碘化物和溴化物以优异的收率得到芳基阴离子,并且还非常有效地还原性裂解选定的苯基烷基砜。
Organic electron donors (OEDs) are powerful reducing agents recognized for their potential in the reduction of challenging substrates and in original applications. Nonetheless, their low stability in atmospheric oxygen or over time complicates their manipulation and storage. To overcome these constraints and enhance OED practicality, new air‐ and moisture‐stable aminopyridinium carboxylate and carbonate
Catalytic amounts of 1,3-di(methyl)imidazole-2-ylidene, one of the simplest and most prototypical N-heterocyclic carbenes, can up-convert aldehydes into powerful stoichiometric sources of electrons (Super Electron Donors) for reductive transformations of iodoaryls (Ered < −2 V). In particular, the hydroarylation of 1,1′-diarylethylenes, which may require high temperatures and inherently generate stoichiometric