Transition-Metal-Free Synthesis of <i>N</i>-Aryl Hydroxamic Acids via Insertion of Arynes
作者:Lanlan Zhang、Yu Geng、Zhong Jin
DOI:10.1021/acs.joc.6b00111
日期:2016.5.6
carbon–carbon double bonds, and free N–H bond of indole are found to be compatible with this process. In particular, the protocol is applicable in the synthesis of structurally diverse N-aryl hydroxamates and hydroxamic acids derived from N-protecting amino acids and peptides. In the presence of multiple amide N–H bonds, the N-arylation reaction can proceed selectively in the N–H bonds of terminal N-OBn amides
描述了通过将芳烃插入N-烷氧基酰胺的NH键中的一种有效且无过渡金属的酰胺N-芳基化反应。发现各种反应性官能团,包括反应性醛羰基,呋喃环,碳-碳双键和吲哚的游离NH键均与该过程兼容。特别地,该方案可用于合成结构多样的N-芳基异羟肟酸酯和衍生自N-保护氨基酸和肽的异羟肟酸。在存在多个酰胺N–H键的情况下,N-芳基化反应可以在末端N -OBn酰胺的N–H键中选择性进行,从而产生所需的N-芳基异羟肟酸酯。