Dual participation of generated--benzoquinones with substituted furanoid vinyl glycals in cycloaddition reaction
摘要:
In-situ generated 2-substituted-p-benzoquinones from 3 (b - d) showed dual reactivity towards substituted glucofuranodienes 1 (a - c) and 2 (a - c). The cyclo-addition showed complete stereo- and regiochemical control.