Ruthenium-Catalyzed Oxidative C–H Bond Olefination of N-Methoxybenzamides Using an Oxidizing Directing Group
摘要:
Ruthenium-catalyzed oxidative C-H bond olefination of N-methoxybenzamides using an oxidizing directing group with a broad substrate scope is reported. The reactions of N-methoxybenzamides with acrylates in MeOH and styrene (or norbornadiene) in CF3CH2OH afforded two types of products.
Corrigendum: Ligand‐Controlled Regio‐divergent Pathways of Rhodium(III)‐Catalyzed Dihydroisoquinolone Synthesis – Experimental and Computational Studies of Different Cyclopentadienyls
作者:Matthew D. Wodrich、Baihua Ye、Jérôme F. Gonthier、Clémence Corminboeuf、Nicolai Cramer
DOI:10.1002/chem.202001781
日期:2020.6.18
spectra of product 4 aa confirmed that the correct structure corresponds to the constitutional 3‐benzyl‐isoindolonesisomer (Figure 1). 4‐Phenyl‐3,4‐dihydroisoquinolin‐1(2H )‐one was reported by Ellman and its structure was confirmed by X‐ray crystallographic analysis.1 The corrected isoindolonestructure of 4 aa matches all data of 3‐benzyl‐isoindolone synthesized by a different route.2 Figure 1 Open
作者意识到,产品4aa被错误地分配给4-苯基-3,4-二氢异喹啉-1(2 H)-1 。重新分析产物4 aa的1 H NMR和13 C NMR谱图,确认正确的结构对应于3-苄基-异吲哚酮的异构体(图1)。Ellman报告了4-苯基-3,4-二氢异喹啉-1(2 H)-1 ,并通过X射线晶体学分析证实了其结构。1校正后的4aa的异吲哚酮结构与通过不同途径合成的3-苄基异吲哚酮的所有数据匹配。2 图1 在图形查看器中打开PowerPoint 校正了产品4aa的结构,并将其与参考文献NMR数据进行了比较。 结果,经校正的表1的内容如下,化合物4 aa的正确结构为3-苄基-异吲哚酮而不是4-苯基-3,4-二氢异喹啉-1(2 H)-one。产物3aa的结构以及所有产率和选择性都是正确的。 表1.不同反应参数对发散苯乙烯掺入的影响。[一种] 条目 Rh-cat 溶剂 总收率[%] 4 aa : 3 aa
Ligand-Controlled Regiodivergent Pathways of Rhodium(III)-Catalyzed Dihydroisoquinolone Synthesis: Experimental and Computational Studies of Different Cyclopentadienyl Ligands
作者:Matthew D. Wodrich、Baihua Ye、Jérôme F. Gonthier、Clémence Corminboeuf、Nicolai Cramer
DOI:10.1002/chem.201404515
日期:2014.11.17
inaccessible 4‐aryl dihydroisoquinolones under full catalystcontrol. The differences in the catalysts are computationally examined using density functional theory and transition state theory of different possible pathways to elucidate key contributing factors leading to the regioisomeric products. The stabilities of the initially formed rhodium complex styrene adducts, as well as activation barrier
Ruthenium-Catalyzed Oxidative C–H Bond Olefination of <i>N</i>-Methoxybenzamides Using an Oxidizing Directing Group
作者:Bin Li、Jianfeng Ma、Nuancheng Wang、Huiliang Feng、Shansheng Xu、Baiquan Wang
DOI:10.1021/ol2032575
日期:2012.2.3
Ruthenium-catalyzed oxidative C-H bond olefination of N-methoxybenzamides using an oxidizing directing group with a broad substrate scope is reported. The reactions of N-methoxybenzamides with acrylates in MeOH and styrene (or norbornadiene) in CF3CH2OH afforded two types of products.