Naphthol synthesis: annulation of nitrones with alkynes via rhodium(<scp>iii</scp>)-catalyzed C–H activation
作者:Qiang Wang、Youwei Xu、Xifa Yang、Yunyun Li、Xingwei Li
DOI:10.1039/c7cc05000c
日期:——
An efficient and redox-neutral naphthol synthesis has been realized via rhodium(III) catalyzed C-Hactivation of alpha-carbonyl nitrones and annulation with alkynes, where the nitrone group functioned as a traceless directing group.
A concise synthesis of 1‐naphthols via cyclization of o‐iodoacetophenones and methyl ketones has been realized under very mild conditions. The cyclization process is initiated by a rare copper‐catalyzed arylation of simple methyl ketones with ortho‐iodoacetophenones.
Facile synthesis of 1-naphthols through a copper-catalyzed arylation of methyl ketones with o-bromoacetophenones
作者:Zhen-Bang Lou、Xin-Long Pang、Chao Chen、Li-Rong Wen、Ming Li
DOI:10.1016/j.cclet.2015.07.022
日期:2015.10
Abstract The coupling reactions of simple methyl ketones with o -bromoacetophenones and subsquential cyclization reactions were realized to produce a range of 1-naphthols. These cascade reactions were initiated by a rare Cu-catalyzed arylation reaction of methyl ketones with aromatic bromides.
Rhodium(III)-Catalyzed Synthesis of Naphthols via C–H Activation of Sulfoxonium Ylides
作者:Youwei Xu、Xifa Yang、Xukai Zhou、Lingheng Kong、Xingwei Li
DOI:10.1021/acs.orglett.7b01974
日期:2017.8.18
Direct and efficient synthesis of 1-naphthols has been realized via Rh(III)-catalyzedC–Hactivation of sulfoxonium ylides and subsequent annulation with alkynes, where the sulfoxonium ylide functioned as a new traceless bifunctional directing group. This reaction occurred under redox-neutral conditions with a broad substrate scope.