The Friedel-Crafts-type benzylation of various -excessive heteroaromatic and aromatic compounds with trityl or benzhydryl halides was efficiently promoted by a thiourea catalyst. This is a novel example of thiourea catalysis of aromatic alkylation by way of an S(N)1 pathway.
Electrochemically enhanced deoxygenative cross-coupling of aryl ketones with heteroarenes through <i>in situ</i> generated benzyl carbocations
transformation of CO bonds through a multistep reaction pathway in one pot. Electrolysis of the acidic reaction mixture significantly improved carbonyl reduction and thus facilitated the generation of benzyl carbocations, which show high reactivity towards electron-rich heteroarenes for C–C bond formation.
三氟甲磺酸/硅烷作为协同还原剂,可以通过多步反应途径在一锅中方便地转化 C O 键。酸性反应混合物的电解显着改善了羰基还原,从而促进了苄基碳阳离子的产生,其对富电子杂芳烃具有高反应性,可形成 C-C 键。