The pagodane route to dodecahedranes: highly functionalized, saturated and bis-unsaturated pentagonal dodecahedranes via SN2 cyclizations
作者:Rolf Pinkos、Johann Peter Melder、Klaus Weber、Dieter Hunkler、Horst Prinzbach
DOI:10.1021/ja00069a015
日期:1993.8
saturated dodecahedranes featuring novel substitution patterns-two (45), four (42 and 44), and six (40, 41, and 43) skeletal positions being pairwise functionalized-are synthesized starting from 14,19-dioxopagodane-4-syn,9-syn-dicarbonitrile (4). Crucial stages on the way from 4 to the key 1,16-dodecahedradiene 40 are the installation of anti-positioned leaving groups at C14(19) via pagodane bislactone