Enamine chemistry. Part 23. Synthesis, spectral properties, and relative stabilities of cyclic dienamine complexes of tricarbonyliron
作者:Md. Giasuddin Ahmed、Peter W. Hickmott、Michael Cais
DOI:10.1039/dt9770001557
日期:——
Reaction of [Fe(CO)5] and the morpholine and pyrrolidine dienamines of 3,5,5-trimethylcyclohex-2-en-1-one gives a mixture of two tricarbonyl(dienamine)iron complexes. The complex in which the dienamine system is cross-conjugated has been shown to be more stable than that in which the dienamine is linearly conjugated. The reason for this, and the effect on the spectral properties, are discussed.
Controlling Cyclic Dienamine Reactivity in Radical tert‐Alkylation for Molecular Diversity to Synthesize Multicyclic Compounds Possessing a Quaternary Carbon
作者:Shinjiro Kusano、Takashi Nishikata
DOI:10.1002/chem.202304215
日期:2024.3.20
Selective formation of the desired dienamines from β-methylcyclohexenone and their reaction with tertiary alkyl radicals generated from α-bromoesters led to the synthesis of γ-oxoalkyl substituted cyclohexenone derivatives (OAC) with a quaternary carbon have been successfully synthesized. This OAC can be used as a common synthetic intermediate for fused [5,6] rings and spirocycles.