Synthesis and 1,3-dipolar cycloaddition reactions of 4-methyl-1-nitromethyl-2,6,7-trioxabicyclo[2.2.2]octane
作者:Christopher J Fenk
DOI:10.1016/s0040-4039(99)01656-1
日期:1999.11
The preparation of novel 3-(4-methyl-2,6,7-trioxabicyclo[2.2.2]octyl)-Δ2-isoxazolines 2 via nitrile oxide cycloaddition chemistry is described. The target compounds were produced in moderate to good yields using only 2.2 equivalents of alkene and without the need for slow addition of reagents. Cycloaddition reactions were conducted using modified Mukaiyama conditions that included a convenient dehydration