The decarboxylative coupling of isatoic anhydrides with arylboronic acids was realized for the first time In the presence of Pd-2(dba)(3) and DPEphos, achieving aryl o-aminobenzoates with yields ranging from moderate to good. The efficiency of this procedure was demonstrated by good compatibility with fluoro, chloro, bromo, nitro, cyano, trifluoromethyl, formacyl, acetyl, thienyl, and naphthyl groups. Preliminary mechanistic experiments using deuterium labeling showed that the oxygen atom was derived from dioxygen.
Ruthenium(<scp>ii</scp>)-catalyzed decarbonylative and decarboxylative coupling of isatoic anhydrides with salicylaldehydes: access to aryl 2-aminobenzoates
作者:Bidisha R. Bora、Rashmi Prakash、Sabera Sultana、Sanjib Gogoi
DOI:10.1039/d1ob00027f
日期:——
A ruthenium(II)-catalyzed coupling reaction of isatoicanhydrides and salicylaldehydes has been developed for the synthesis of 2-aminobenzoates. This reaction proceeds through metal-catalyzed decarbonylation and decarboxylation to afford good yields of aryl 2-aminobenzoates.
已经开发了钌 ( II ) 催化的靛红酸酐和水杨醛的偶联反应,用于合成 2-氨基苯甲酸酯。该反应通过金属催化的脱羰和脱羧进行,得到高产率的 2-氨基苯甲酸芳基酯。