Rhodium-Catalyzed Alkenylation of C–H Bonds in Aromatic Amides with Alkynes
作者:Kaname Shibata、Satoko Natsui、Naoto Chatani
DOI:10.1021/acs.orglett.7b00709
日期:2017.5.5
The rhodium-catalyzed alkenylation of C–H bonds of aromaticamides with alkynes is reported. A variety of functional groups, including OMe, OAc, Br, Cl, and even NO2, are applicable to this reaction to give the corresponding hydroarylation products. The presence of an 8-aminoquinoline group as the directing group is crucial for the success of the reaction.
Cobalt-Catalyzed Directed<i>sp</i><sup>2</sup>C−H Acetoxylation of Arenes Employing Mn(OAc)<sub>3</sub> ⋅ 2H<sub>2</sub>O as Acetoxy Source
作者:Writhabrata Sarkar、Arup Bhowmik、Aniket Mishra、Tripta Kumari Vats、Indubhusan Deb
DOI:10.1002/adsc.201800398
日期:2018.9.3
A cobalt‐catalyzed sp2 C−H acetoxylation of amides having 8‐aminoquinoline as a directing group has been achieved using manganese(III) acetate both as an oxidant and an acetoxysource. Operational simplicity, broad range of functional group tolerance, use of an earth abundant first row transition metal, and, most importantly, exploitation of an unprecedented acetoxysource are the key features. The
Ruthenium(II)-catalyzed Alkylation of C-H Bonds in Aromatic Amides with Vinylsilanes
作者:Chen-an Wang、Supriya Rej、Naoto Chatani
DOI:10.1246/cl.190483
日期:2019.10.5
The ruthenium (II)-catalyzed ortho-C-H alkylation of aromatic amides with vinylsilanes with the aid of an 8-aminoquinoline moiety as a directing group is reported. A wide range of functional groups...
据报道,在 8-氨基喹啉部分作为导向基团的帮助下,钌 (II) 催化芳族酰胺与乙烯基硅烷的邻位 CH 烷基化。广泛的功能组...
Copper-Catalyzed Direct sp<sup>2</sup> C–H Silylation of Arylamides Using Disilanes
作者:Writhabrata Sarkar、Aniket Mishra、Arup Bhowmik、Indubhusan Deb
DOI:10.1021/acs.orglett.1c01129
日期:2021.6.18
A copper-catalyzed method for direct intermolecular ortho-silylation of benzamides has been developed that affords organosilane products in moderate to high yields. The key features include: (i) use of commercially available disilanes as a silicon source with 8-aminoquinoline as a bidentate directing group, (ii) use of earth-abundant first-row transition metal, (iii) operationally simple conditions
A Synthesis of 3,4-Dihydroisoquinolin-1(2H)-one via the Rhodium-Catalyzed Alkylation of Aromatic Amides with <i>N</i>-Vinylphthalimide
作者:Qiyuan He、Naoto Chatani
DOI:10.1021/acs.joc.8b02249
日期:2018.11.2
The alkylation of C–H bonds with N-vinylphthalimide by a rhodium-catalyzed reaction of aromatic amides containing an 8-aminoquinoline moiety as the directing group is reported. N-Vinylphthalimide functions as a 2-aminoethylating reagent. The resulting alkylated products can be converted into 3,4-dihydroisoquinolin-1(2H)-one derivatives in a one-pot transformation. Deuterium-labeling experiments suggest