Racemic and Optically Pure Heptahelicene-2-carboxylic Acid: Its Synthesis and Self-Assembly into Nanowire-Like Aggregates
作者:Jiří Rybáček、Gloria Huerta-Angeles、Adrian Kollárovič、Irena G. Stará、Ivo Starý、Philipp Rahe、Markus Nimmrich、Angelika Kühnle
DOI:10.1002/ejoc.201001110
日期:2011.2
methoxycarbonylation reaction to provide, after hydrolysis, heptahelicene-2-carboxylic acid. The racemate was resolved into enantiomers by semipreparative HPLC on a chiralcolumn. The helicity of (+)-(P)-heptahelicene-2-carboxylic acid was assigned by correlating its CD spectrum to that of the known (+)-(P)-heptahelicene. Racemic heptahelicene-2-carboxylic acid was deposited on calcite (10-14) to undergo self-assembly