Synthesis of hindered alkyl aryl ether derivatives (R–O–Ar) remains a huge challenge and highly desirable in organic and medicinal chemistry because extensive substitution on the ether bond prevents the undesired metabolic process and thus avoids rapid degradation in vivo. Herein, we report an unprecedented hindered alkoxylation of picolinamide attached aromatic amines using economic copper salt and
Palladium-catalyzed C8–H alkoxycarbonylation of 1-naphthylamines with alkyl chloroformates
作者:Yaqi Shi、Fan Yang、Yangjie Wu
DOI:10.1039/d0ob00586j
日期:——
A simple and efficientprotocol for palladium-catalyzed C8–H alkoxycarbonylation of 1-naphthylamine derivatives with alkyl chloroformates has been developed, exhibiting broad functional group tolerance, high regioselectivity, and oxidant-free conditions. Furthermore, the reaction features its ease of further functionalization and transformation. For example, the concise synthesis of one BET bromodomain
已经开发了一种简单有效的方案,用于钯催化1-萘胺衍生物与烷基氯甲酸酯的C8–H烷氧基羰基化,具有宽泛的官能团耐受性,高区域选择性和无氧化剂条件。此外,该反应具有易于进一步官能化和转化的特征。例如,从获得的烷氧羰基化产物进行多步转化后,通过苯并[ cd ]吲哚-2(1 H)-1完成了一种BET溴结构域抑制剂的简明合成。另外,对照实验表明,该反应可能涉及自由基过程,而C–H键断裂可能不参与速率确定步骤。
Silver(I) Promoted the C4–H Bond Phosphonation of 1-Naphthylamine Derivatives with H-Phosphonates
作者:Lixiao Zhao、Mengmeng Sun、Fan Yang、Yangjie Wu
DOI:10.1021/acs.joc.1c00971
日期:2021.9.3
A simple and efficient protocol for silver-promoted direct C–H phosphonation of 1-naphthylamine derivatives with H-phosphonates was described. This reaction proceeded smoothly for 1-naphthylamine derivatives at the C4 site, providing a facile and efficient route to 4-phosphonated 1-naphthylamine derivatives. This phosphonation could tolerate a diverse type of functional groups at the pyridinyl and
Palladium-Catalyzed C8-H Acylation of 1-Naphthylamines with Acyl Chlorides
作者:Xiaomeng Yu、Fan Yang、Yusheng Wu、Yangjie Wu
DOI:10.1021/acs.orglett.9b00283
日期:2019.3.15
A facile and efficient protocol for palladium-catalyzed regioselective C8-H acylation of 1-naphthylamine derivatives with acyl chlorides has been developed. The reaction exhibits broad functional group tolerance, and both aromatic and α,β-unsaturated acyl chlorides can be effectively coupled with 1-naphthylamines. Moreover, the picolinamide moiety as a bidentate directing likely plays a key role in
A simple and facile copper(II) mediated protocol for C-8 amination of 1-naphthylamide derivatives is reported here. Picolinamide and its derivatives were used as a bidentate directing group for the C-8 amination reaction. Various substituted naphthylamide derivatives with numerous cyclic and acyclic amines proceed in good yields under mild conditions. Air was used solely as an oxidant.