Role of the methoxy group in product formation via TiCl4 promoted 4-phenyldioxolane isomerizationsons
作者:Ivan Robert Green、Natasha October
DOI:10.3998/ark.5550190.0011.206
日期:——
The product distribution obtained from the TiCl4 initiated intramolecular isomerizations of 4methoxyphenyland trimethoxyphenyldioxolanes at -78 C, -30 C and 0 C provided insights into the important regiochemical role played by these groups in such Mukaiyamatype rearrangements through their resonance effects on the aryl ring of the dioxolanes.
从 TiCl4 引发的 4-甲氧基苯基和三甲氧基苯基二氧戊环在 -78°C、-30°C 和 0°C 的分子内异构化获得的产物分布提供了对这些基团在此类 Mukaiyama 型重排中发挥的重要区域化学作用的见解,通过它们对二氧戊环的芳环的共振作用.