Optical activity due to isotopic substitution. Synthesis and absolute configuration of (+)-and (–)-(C3)-[2H3]cyclotribenzylene([2H3][1.1.1]orthocyclophane)
Abstract
The (+)- and (–)-enantiomers of (C3)-[2H3]cyclotribenzylene (or[2,7,12,-2H3]-10,15-dihydro-5H-tribenzo[a,d,g]cyclononene), whose chirality is due to isotopic substitution, were synthesized from (C3)-cyclotriguaiacylene, and their absolute configuration was established as P-(+) or M-(–).