Metal-Free Synthesis of 3-Arylquinolin-2-ones from<i>N</i>,2-Diaryl- acrylamides<i>via</i>Phenyliodine(III) Bis(2,2-dimethylpropanoate)- Mediated Direct Oxidative C−C Bond Formation
作者:Yang Cao、Hui Zhao、Daisy Zhang-Negrerie、Yunfei Du、Kang Zhao
DOI:10.1002/adsc.201600512
日期:2016.11.17
Treatment of N,2‐diarylacrylamides with the organoiodine(III) compound phenyliodine(III) bis(2,2‐dimethylpropanoate) [PhI(O2C‐t‐Bu)2] and boron trifluoride etherate (BF3⋅Et2O) resulted in a direct and selective oxidative C(sp2)−C(sp2) bond formation leading to a convenient assemblage, under mild conditions, of the biologically important 3‐arylquinolin‐2‐one skeleton. Differing from the five‐membered
的治疗Ñ,2- diarylacrylamides与有机碘(III)化合物phenyliodine(III)双(2,2-二甲基丙酸酯)[是Phl(O 2 C-叔丁基)2 ]和三氟化硼醚(BF 3 ⋅Et 2 ö )导致直接和选择性的氧化C(sp 2)-C(sp 2)键形成,从而在温和条件下方便地组装了生物学上重要的3-芳基喹啉-2-酮骨架。与过渡金属介导的氧化环化过程中的五元羟吲哚产物不同,这种无金属方法实现了N的直接环化。将芳基丙烯酰胺转变成六元3芳基喹啉2一骨架。