摘要 提出了由KO t -Bu促进的N'-芳基-2-卤代苯并肼合成N-芳基-2-卤代苯并肼合成1-芳基吲哚酮和2-芳基吲哚酮的新方法。2-卤素取代基的差异对产物的分布具有显着影响。提出了两种不同的反应途径分别用于生成1-芳基吲哚酮和2-芳基吲哚酮。 提出了由KO t -Bu促进的N'-芳基-2-卤代苯并肼合成N-芳基-2-卤代苯并肼合成1-芳基吲哚酮和2-芳基吲哚酮的新方法。2-卤素取代基的差异对产物的分布具有显着影响。提出了两种不同的反应途径分别用于生成1-芳基吲哚酮和2-芳基吲哚酮。
Indazolones Directed Rh(III)‐Catalyzed C−H Amidation of Arenes
作者:Shao‐Yong Chen、Yi‐Chuan Zheng、Xu‐Ge Liu、Jia‐Lin Song、Bing Shu、Tao Zheng、Lin Xiao、Shang‐Shi Zhang、Hua Cao
DOI:10.1002/adsc.202200570
日期:2022.9.20
The Cp*Rh(III)-catalyzed indazolone-directed C−H bond amidation of arenes has been realized by employing sulfonyl azide agents and dioxazolones as nitrogen source. This protocol displays mild conditions, broad substrate scope and high functional group compatibility. What’ more, the late-stage modifications of structure complicated drugs, such as Gemfibrozil, Oxaprozin, Probenecid and Naproxen, has
Abstract A new method for the synthesis of 1-arylindazolones and 2-arylindazolones from N′-aryl-2-halobenzohydrazides promoted by KOt-Bu was developed. The difference of 2-halogen substituent exerted a significant effect on the distribution of the products. Two distinct reaction pathways are proposed for the generation of 1-arylindazolones and 2-arylindazolones, respectively. A new method for the synthesis
摘要 提出了由KO t -Bu促进的N'-芳基-2-卤代苯并肼合成N-芳基-2-卤代苯并肼合成1-芳基吲哚酮和2-芳基吲哚酮的新方法。2-卤素取代基的差异对产物的分布具有显着影响。提出了两种不同的反应途径分别用于生成1-芳基吲哚酮和2-芳基吲哚酮。 提出了由KO t -Bu促进的N'-芳基-2-卤代苯并肼合成N-芳基-2-卤代苯并肼合成1-芳基吲哚酮和2-芳基吲哚酮的新方法。2-卤素取代基的差异对产物的分布具有显着影响。提出了两种不同的反应途径分别用于生成1-芳基吲哚酮和2-芳基吲哚酮。
Rh(III)-Catalyzed C–H Functionalization/Annulation of 1-Arylindazolones: Divergent Synthesis of Fused Indazolones and Allyl Indazolones
Rh(III)-catalyzed C–H/N–H annulation and C–H allylation of phenylindazolones have been realized by employing 5-methylene-1,3-dioxan-2-one and 4-vinyl-1,3-dioxolan-2-one as scalable cross-coupling partners, delivering functionalized indazolone fused heterocycles and branched and linear allyl indazolones respectively in moderate to high yield. These divergent synthesis protocols showcase mild conditions