Electrophile-mediated cyclizations in carbohydrate chemistry: synthesis of highly functionalized ribofuranose and ribopyranose compounds
作者:Fillmore Freeman、K.D. Robarge
DOI:10.1016/s0040-4039(00)98347-3
日期:1985.1
Iodine-mediated cyclization of (Z)- and (E)-=D}-ribohept-2-enonates 1 and 2 gave exclusively the β-ribofuranose and α-ribofuranose derivatives 3 and 4, respectively. Cyclization of the (Z)- and (E)-2-heptene-1-ol derivatives 5 and 6 gave ribofuranose products (7 and 8) and a ribopyranose (9), respectively.