Photocatalytic Markovnikov-type addition and cyclization of terminal alkynes leading to 4-sulfonyl quinoline-2(1<i>H</i>)-ones
作者:Yu-Lin Zhai、Hui Zhou、Qing-Quan Liu、Bo-Rong Leng、Zixian Zhang、Jia-Zhuo Li、De-Cai Wang、Yi-Long Zhu
DOI:10.1039/d2cc01169g
日期:——
Markovnikov-type sulfonylation/6-endo-trig cyclization/selective C(O)–CF3 bond cleavage starting from N-alkyl-N-(2-ethynylphenyl)-2,2,2-trifluoroacetamides and sulfinic acids has been developed. It is as an unprecedented protocol for the preparation of 4-sulfonylquinoline-2(1H)-ones with high efficiency, mild reaction conditions, acceptable yields and a wide range of substrates.
从N-烷基-N-开始通过马尔科夫尼科夫型磺酰化/6-endo-trig 环化/选择性 C(O)-CF 3键裂解构建 quinolin-2(1 H )-ones的一种新的便捷光催化方案(2-乙炔基苯基)-2,2,2-三氟乙酰胺和亚磺酸已被开发出来。它是一种前所未有的制备 4-磺酰喹啉-2(1 H )-ones 的方案,具有高效、温和的反应条件、可接受的产率和广泛的底物。