Photochemical Activation of Aromatic Aldehydes: Synthesis of Amides, Hydroxamic Acids and Esters
作者:Nikolaos F. Nikitas、Mary K. Apostolopoulou、Elpida Skolia、Anna Tsoukaki、Christoforos G. Kokotos
DOI:10.1002/chem.202100655
日期:2021.5.20
the activation of aromatic aldehydes has been developed. Utilizing thioxanthen-9-one as the photocatalyst and cheap household lamps as the light source, a variety of aromatic aldehydes have been activated and subsequently converted in a one-pot reaction into amides, hydroxamic acids and esters in good to high yields. The applicability of this method was highlighted in the synthesis of Moclobemide, a
A herbicidal formulation comprising a compound of formula (I) where R1 is alkyl or H; R2, R3, R4 and R5 are independently selectable from H, halide, -NO2, -SO2R', -OH, -Oalkyl where R' is alkyl or aminoalkyl; and R6 is a substituted or non-substituted alkyl, and/or substituted or non-substituted aryl.
Exploiting Hydroxamic Acids as Organocatalysts for the Epoxidation of Alkenes with Hydrogen Peroxide as the Oxidant
作者:Efthymios T. Poursaitidis、Foteini Trigka、Christiana Mantzourani、Maroula G. Kokotou、Ierasia Triandafillidi、Christoforos G. Kokotos
DOI:10.1002/ejoc.202400082
日期:2024.4.2
An organocatalytic epoxidation of alkenes synthesis is presented in which hydroxamic acids are used as the catalyst and hydrogenperoxide as the green oxidant. Mechanistic studies by direct infusion HRMS provide experimental evidence for the formation of various intermediates.