Helical primary structures of 1,3-spiroannelated five-membered rings: (±)-trispiro[4.1.1.4.2.2]heptadecane and (±)-tetraspiro[4.1.1.1.4.2.2.2]heneicosane
作者:Imelda Meyer-Wilmes、Ralf Gerke、Lutz Fitjer
DOI:10.1016/j.tet.2008.12.025
日期:2009.2
A combination of three spiroannelation methods forms the basis for a synthesis of the first two helicalhydrocarbons of 1,3-spiroannelated five-memberedrings.