Sequential Functionalization of the OH and C(<i>sp</i><sup>2</sup>)O Bonds of Tropolones by Alkynes and<i>N</i>-Sulfonyl Azides
作者:Boram Seo、Woo Hyung Jeon、Chul-Eui Kim、Sanghyuck Kim、Sung Hong Kim、Phil Ho Lee
DOI:10.1002/adsc.201500829
日期:2016.3.31
Sequential copper‐catalyzed [3+2] cycloaddition, rhodium‐catalyzed OH insertion, intramolecular 1,8‐addition, and rearrangement starting from 1‐alkynes, N‐sulfonyl azides, and tropolones is demonstrated for the synthesis of the 2‐functionalized aminotropones in one pot. These results indicate that sequential functionalization of OH and C(sp2)O bonds smoothly occurs in the C(sp2)OH bonds of tropolone
证明了铜催化的[3 + 2]环加成,铑催化的OH插入,分子内的1,8加成和从1-炔烃,N-磺酰叠氮化物和对苯二酚的重排可用于2-酮的合成。一锅中的功能化的氨基tropones。这些结果表明的那顺序官能ö H和C(SP 2) O键顺利发生在C(SP 2) ø ħ托酚酮的键