Enantioselective Synthesis of Indole‐Derivated Axially Chiral Frameworks via CpXRh(III)‐Catalyzed Domino Cyclization/C3‐Arylation of 2‐Alkynylanilines with 1‐Diazonaphthoquinones
Ir(III)-Catalyzed Direct C–H Functionalization of Arylphosphine Oxides: A Strategy for MOP-Type Ligands Synthesis
作者:Zhong Liu、Ji-Qiang Wu、Shang-Dong Yang
DOI:10.1021/acs.orglett.7b02710
日期:2017.10.6
efficiently applied to Ir(III)-catalyzed direct C–H functionalization of arylphosphine oxides. Involving C–H activation, carbene insertion, and tautomerism, this reaction proceeds under mild conditions, thus proving an approach to the synthesis of MOP-type ligand precursor in a single step. The utility of this transformation has been further demonstrated in ligand synthesis as well as in the construction
Chemodivergent Synthesis of Oxazoles and Oxime Ethers Initiated by Selective C–N/C–O Formation of Oximes and Diazo Esters
作者:Zhenjie Qi、Shaozhong Wang
DOI:10.1021/acs.orglett.1c03252
日期:2021.11.5
Chemodivergent reactions of oximes and diazo esters involving Rh-catalyzed [3+2] annulation and photodriven O–H insertion have been developed to generate oxazoles and oxime ethers. A range of aldehyde and ketone oximes reacted with α-diazocarbonyl compounds in a controllable manner in which functional groups, including ketone, ester, amide, ether, thiol ether, silane, alkene, allene, and alkyne groups
Rh(<scp>iii</scp>)-Catalyzed straightforward arylation of 8-methyl/formylquinolines using diazo compounds
作者:Bidhan Ghosh、Rajarshi Samanta
DOI:10.1039/c9cc02391g
日期:——
A straightforward Rh(III)-catalyzed general strategy was developed for the introduction of naphthol/phenol moieties to the C(sp3)–H bond of 8-methylquinoline using diazonaphthalen-2(1H)-ones/quinone diazides. The developed method was further extended towards the arylation of 8-formylquinolines to accomplish diarylketone derivatives. The method is simple, relatively rapid, and chemo and regioselective
Rh(II)-Catalyzed Synthetic Strategy for Diverse and Functionalized Halonaphthalenyl Ethers and Esters from Diazo Compounds and Its Application to Polyaromatic Compounds
作者:Yong Lee、Ek Baral、Sung Kim、Young-Jung Wee
DOI:10.1055/s-0035-1561295
日期:——
various functionalized halonaphthalenyl ethers and esters in moderate to good yield was achieved via rhodium(II)-catalyzed reaction of readily available diazo compounds with benzyl halides or acid halides. This methodology has several advantages, such as ease of handling, mild reaction conditions, bromine- or chlorine-free route, and the use of an effective catalyst. The synthesized compounds were further
Formal Allylation and Enantioselective Cyclopropanation of Donor/Acceptor Rhodium(II) Azavinyl Carbenes
作者:Zhili Liu、Lianfen Chen、Dong Zhu、Shifa Zhu
DOI:10.1021/acs.orglett.0c04251
日期:2021.2.19
es with alkenes under rhodium(II) catalysis is reported. Various allyl dihydronaphthalene derivatives were furnished via rhodium(II) azavinyl carbenes with moderate to good yields and excellent chemoselectivity. When monosubstituted alkenes are used, cyclopropanation occurs and good to excellent enantioselectivities have been achieved. Particularly noteworthy is the allylic C(sp2)–H activation instead