A number of doubly-fused [1,2] naphthodifurans have been synthesized from the corresponding diallyl-dihydroxy naphthalene precursors involving N-iodosuccinimide in acetonitrile and also by molecular iodine in aqueous ...
Financial support of this research from the National Natural Science Foundaion of China(20372085)is gratefully acknowledged by the authors.
Using thioglycosides as donors, trimethylsilyl trifluoromethanesulfonate (TMSOTf) and N-iodosuccinimide(NIS) as promoter, a modified procedure for the glycosylation of spirostanol was developed. A series of saponins w...