作者:Eleonora Forni、Laura Cipolla、Enrico Caneva、Barbara La Ferla、Francesco Peri、Francesco Nicotra
DOI:10.1016/s0040-4039(01)02393-0
日期:2002.2
Iodocyclisation of polybenzylated allyl alpha-C-fructofuranoside 1 afforded the bicyclic iodoether 2 through debenzylation at C-1: treatment of 2 with zinc and acetic acid restored the all tic group with concomitant deprotection of the hydroxyl group ;at C-1, which as oxidised to the corresponding aldehyde 4. Reaction of 4 with vinylmagnesium bromide afforded diene 5, whose double bonds were reacted regioselectively in order to obtain, upon iodocylisation under different experimental conditions. bicycles 6 or 7, or tricycle 8. (C) 2002 Elsevier Science Ltd. All rights reserve.