Xiao Yuanyuan, Yi Zijuan, Yu Xianyong, Xiao Fang
Department of Health Toxicology, Xiangya School of Public Health, Central South University Changsha 410078 PR China
School of Chemistry and Chemical Engineering, Hunan University of Science and Technology Xiangtan 411201 China.
RSC Adv. 2020 Aug 6;10(49):29114-29118. doi: 10.1039/d0ra05921h. eCollection 2020 Aug 5.
The reaction employing HO and O as the co-oxygen source in the catalytic synthesis of α-ketoamides is described. This copper-catalyzed reaction is carried out in a tandem manner constituted by the hydroamination of alkyne, hydration of vinyl-Cu complex and subsequent oxidation. Isotope labeling and radical capture experiments reveal that the oxygen atom of α-ketone at α-ketoamides derives from O and the oxygen atom of amide group originates from HO.
描述了在催化合成α-酮酰胺中使用HO和O作为共氧源的反应。这种铜催化反应以串联方式进行,由炔烃的氢胺化、乙烯基铜配合物的水合以及随后的氧化组成。同位素标记和自由基捕获实验表明,α-酮酰胺中α-酮的氧原子来自O,酰胺基团的氧原子来自HO。