Electrochemical Synthesis of 1-Naphthols by Intermolecular Annulation of Alkynes with 1,3-Dicarbonyl Compounds
作者:Mu-Xue He、Zu-Yu Mo、Zi-Qiang Wang、Shi-Yan Cheng、Ren-Ren Xie、Hai-Tao Tang、Ying-Ming Pan
DOI:10.1021/acs.orglett.9b04549
日期:2020.1.17
functionalized 1-naphthols using alkynes and 1,3-dicarbonylcompounds by (4 + 2) annulation of C-centered radical. Electrolysis was conducted with Cp2Fe as redox catalyst, thereby eliminating the use of oxidants and transition-metal catalysts. The synthesized 1-naphthol compounds showed good antitumor activity in vitro, and further studies indicated that compound 3bl induced tumor cell apoptosis.
Bromide-Mediated C–H Bond Functionalization: Intermolecular Annulation of Phenylethanone Derivatives with Alkynes for the Synthesis of 1-Naphthols
作者:Tao Lu、Ya-Ting Jiang、Feng-Ping Ma、Zi-Jing Tang、Liu Kuang、Yu-Xuan Wang、Bin Wang
DOI:10.1021/acs.orglett.7b03186
日期:2017.12.1
formation of polysubstituted 1-naphthols. The usage of readily available bromine catalyst, broad substrate scope, and mild conditions make this protocol very practical. Mechanistic investigations reveal that the bromination of phenylethanone derivatives occurs to yield bromo-substituted intermediates, which react in situ with alkynes to furnish the desired 1-naphthols.
Silver(I)-Catalyzed Regioselective Construction of Highly Substituted α-Naphthols and Its Application toward Expeditious Synthesis of Lignan Natural Products
developed for regioselective synthesis of highly substituted α-naphthols, binaphthols, and anthracenol through silver(I) catalyzed C(sp3)–H/C(sp)–H, C(sp2)–H/C(sp)–H functionalization of β-ketoesters and alkynes, respectively, in a single step using water as a solvent. This protocol exhibited broad substrate scope and paved the way for synthesis of anticancer arylnaphthalenelignan natural products such as
Asymmetric dearomatization of benzyl 1-naphthyl ethers via [1,3] O-to-C rearrangement
作者:Hongkun Zeng、Gang Wen、Lili Lin、Xiaoming Feng
DOI:10.1039/d4cc02620a
日期:——
A catalytic asymmetric dearomatization reaction of benzyl 1-naphthyl ethers accelerated by a chiral N,N′-dioxide/Co(II) complex is disclosed. The reaction proceeds via an enantioselective [1,3] O-to-C rearrangement through a tight ion-pair pathway, providing a wide array of α-naphthalenone derivatives bearing an all-carbon quaternary center in high yields with excellent ee values.
公开了由手性N , N'-二氧化物/Co( II )络合物加速的苄基1-萘基醚的催化不对称脱芳构化反应。该反应通过紧密离子对途径进行对映选择性 [1,3] O-to-C 重排,以高收率和优异的 ee 值提供多种带有全碳四元中心的 α-萘酮衍生物。