Efficient indenones synthesis via iridium-catalyzed decarboxylative annulation between 2-oxo-2-phenylacetic acids and alkynes
作者:Xiaobo Yu、Shudong Geng、Guanchen Liu、Weijie Guo、Jianhui Wang
DOI:10.1016/j.jorganchem.2018.09.011
日期:2019.1
Efficient iridium-catalyzed decarboxylative annulation reactions between 2-oxo-2-phenylacetic acids and alkyne derivatives has been achieved. [IrCp*Cl2]2 with a (CH3OC6H4)3P ligand, AgSbF6 and Cu(OAc)2 additives was the most efficient catalytic system for this transformation. This reaction is suitable for a broad range of alkynes and 2-oxo-2-phenylacetic acids and a variety of indenone derivatives
Palladium-Catalyzed Acylations: One-Pot Synthesis of Indenones
作者:Basuli Suchand、Gedu Satyanarayana
DOI:10.1021/acs.joc.6b02453
日期:2017.1.6
An efficient, one-potsynthesis of substituted indenones was accomplished starting from simple o-iodoketones and aldehydes. [Pd]-catalyzed direct acylation of o-iodoketones with aldehydes was employed as the key step. Subsequent intramolecularaldolcondensation afforded the indenones. Notably, a variety of indenones were achieved. Significantly, the natural product neolignan was accomplished in one
Synthesis of Fused Cyclopentenones through Palladium-Catalyzed Cyclization of 2-Iodoaryl Allenols
作者:Benito Alcaide、Pedro Almendros、José M. Alonso、Israel Fernández、Saeed Khodabakhshi
DOI:10.1002/adsc.201301127
日期:2014.4.14
A versatile strategy for the synthesis of fused cyclopentenones, key structural motifs in biologically relevant compounds such as indenones and indole alkaloids, has been established successfully through regioselective palladium‐catalyzed cyclization of 2‐iodoaryl allenols.
L'utilisation de l'anode comme catalyseur d'additions (2 + 2) et (4 + 2): exemple de la reactivite d'indenones en presence de certains styrenes α-substitues