Heteroatom-stabilized allylic cations in 4+3 cycloadditions. A tandem Peterson olefination/4+3 cycloaddition reaction
作者:Michael Harmata、Darin E. Jones
DOI:10.1016/s0040-4039(97)00775-2
日期:1997.6
The readily available tertiary alcohols 4a-c react with selected dienes in the presence of titanium tetrachloride to give 4+3 cycloaddition products. The process is best rationalized as a Peterson olefination followed by allylic cation formation and 4+3 cycloaddition. (C) 1997 Elsevier Science Ltd.
Vinyl Oxocarbenium Ions in Intermolecular [4 + 3] Cycloaddition Reactions