Intramolecular Addition of Stabilized Enolates to (η6-Arene)ruthenium Complexes: Synthesis of Ru-Coordinated Azaspirocycles
摘要:
[GRAPHICS]Stabilized enolates attached to, cationic (arene)(RuCp)-Cp-II complexes via an amide linkage were found to participate in nucleophilic aromatic addition reactions resulting in the formation of novel cyclohexadienyl-Ru azaspirocycles. Enolate addition to the activated arene ring was found to proceed with complete stereoselectivity.
Intramolecular Addition of Stabilized Enolates to (η<sup>6</sup>-Arene)ruthenium Complexes: Synthesis of Ru-Coordinated Azaspirocycles
作者:F. Christopher Pigge、Shiyue Fang、Nigam P. Rath
DOI:10.1021/ol991123v
日期:1999.12.1
[GRAPHICS]Stabilized enolates attached to, cationic (arene)(RuCp)-Cp-II complexes via an amide linkage were found to participate in nucleophilic aromatic addition reactions resulting in the formation of novel cyclohexadienyl-Ru azaspirocycles. Enolate addition to the activated arene ring was found to proceed with complete stereoselectivity.
Ruthenium-Coordinated Spirolactams via Intramolecular Nucleophilic Addition to η<sup>6</sup>-Arene Metal Complexes
作者:F. Christopher Pigge、John J. Coniglio、Shiyue Fang
DOI:10.1021/om020592p
日期:2002.10.1
contrast, related arene rutheniumcomplexes prepared from benzyl acetoacetate and phenethyl acetoacetamide failed to undergo spirocyclization, but were found to participate in intramolecular SNAr reactions (leading to formation of tetralone and benzazepinone ring systems, respectively). Thus, the conformational mobility of the side chain linking the nucleophilic center to the coordinated arene ring