作者:Alex Cameron、Brendan Fisher、Mark A. Rizzacasa
DOI:10.1016/j.tet.2017.10.071
日期:2018.3
The total synthesis of the biaryl ether natural product violaceic acid (1) in four steps is described. The steps included a SNAr reaction between phenol 7 and flouroarene 12 to afford the biaryl ether 13, selective reduction of a nitro group to an amine in the presence of an aldehyde, a Cu mediated Sandmeyer reaction and final hydrolysis to afford the target compound 1. The amine 14 was also converted
描述了四个步骤中的联芳基醚天然产物紫胶酸(1)的全合成。这些步骤包括苯酚7与氟芳烃12之间的S N Ar反应以提供联芳醚13,在醛存在下将硝基选择性还原为胺,Cu介导的Sandmeyer反应以及最终水解以提供目标化合物1。胺14也被转化为已知的碘化物18,其在Pd介导的氢氧化物交叉偶联上得到不纯的1。