Synthesis of the Precursor of Anti-Inflammatory Agents by Cross-Coupling Using Electrogenerated Highly Reactive Zinc
作者:Masao Tokuda、Aishah A. Jalil、Nobuhito Kurono
DOI:10.1055/s-2002-35978
日期:——
Highlyreactive zine metal was readily prepared by electrolysis of a DMF solution containing naphthalene and a supporting electrolyte in a one-compartment cell fitted with a platinum cathode and a zinc anode. This reactivezinc was used for efficient transformation of ethyl 2-bromoacrylate into the corresponding organozinc compound, which was reacted with various aryl iodides in the presence of palladium
α‐Thianthrenium Carbonyl Species: The Equivalent of an α‐Carbonyl Carbocation
作者:Hao Jia、Tobias Ritter
DOI:10.1002/anie.202208978
日期:2022.9.26
We report α-thianthrenium carbonyl species as α-carbonyl carbocation equivalents, generated in situ by radical conjugate addition of trifluoromethyl radical to Michael acceptors. The method can obtain Cα-tetrasubstituted amino acids in 90 seconds.