Selective Metal-Controlled Synthesis of Trifluoromethylated (Indolin-2-ylidene)methyl- and Quinolin-3-ylphosphonates
作者:Alexander Yu. Mitrofanov、Valentina A. Bychkova、Sergey E. Nefedov、Irina P. Beletskaya
DOI:10.1021/acs.joc.0c00913
日期:2020.11.20
Metal-catalyzed (Cu, Ag, Au) reactions of alkynylphosphonates with 1-(2-aminophenyl)-2,2,2-trifluoroethan-1-ones were developed. Terminal alkyne diethyl ethynylphosphonate reacted with ketones to give different products depending on the catalyst used. With a CuI/PPh3 catalytic system, the formation of CF3-containing indoline derivatives was observed with good yields. The use of AgSbF6 as a catalyst
开发了炔基膦酸酯与1-(2-氨基苯基)-2,2,2-三氟乙烷-1-酮的金属催化的(Cu,Ag,Au)反应。末端炔基二乙基乙炔基膦酸酯与酮反应生成不同的产物,具体取决于所使用的催化剂。用CuI / PPh 3催化体系,观察到以良好的产率形成了含CF 3的二氢吲哚衍生物。使用AgSbF 6作为催化剂可以高产率生产喹啉衍生物。反应性较低的2-取代的乙炔基膦酸酯需要金配合物作为催化剂,以提供具有良好收率的相应的2-芳基(烷基)取代的4-(三氟甲基)喹啉-3-基膦酸酯。