Cp*Co(III)‐Catalyzed
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‐Amidation of Benzaldehydes with Dioxazolones Using Transient Directing Group Strategy
作者:Bhuttu Khan、Vikas Dwivedi、Basker Sundararaju
DOI:10.1002/adsc.201901267
日期:2020.3.4
metal‐catalyzed ortho‐selective C(sp2)−H amidation of weakly coordinating aldehydes remains limited to precious metals such as Ir, Rh, Ru, etc. Herein, we put forward a novel report on ortho‐amidation of benzaldehydes employing user‐friendly dioxazolones under cost‐effective and air‐stable Cp*Co(III) catalysis. This catalytic transformation involves transient directing group strategy to enhance the ligating
Rh-catalyzed Transient Directing Group Promoted C-H Amidation of Benzaldehydes Utilizing Dioxazolones
作者:Xiaoyang Wang、Song Song、Ning Jiao
DOI:10.1002/cjoc.201700726
日期:2018.3
Transition‐metal catalyzedC—H functionalization of benzaldehydes is of great interest in organic synthesis. Herein, we developed a transient directing group assisted amidation of benzaldehydes catalyzed by rhodium catalyst. With the employment of 10 mol% of 4‐trifluoromethyl aniline, the in situ generated imine groups as the directing group efficiently enable this transformation. By using this protocol