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.
Rearrangements of aryl-8-oxabicyclo[3.2.1]octenones: synthesis of novel biaryls and 1-aryl-3-furylpropanones
作者:John Mann、Philip D. Wilde、Mark W. Finch
DOI:10.1039/c39850001543
日期:——
The formation of 3-arylbenzaldehydes through rearrangement of 3-aryl-8-oxabicyclo[3.2.1]oct-2-en-7-ones is reported, together with various rearrangement reactions of 2-aryl-8-oxabicyclo[3.2.]oct-6-en-3-ones, and a novel approach to the natural product acamelin.