Synthesis and structures of [2.n]metacyclophane-1,2-diones

摘要

McMurry cyclisation of 1,n-bis(5-formyl-2-methoxyphenyl)alkanes afforded dimethoxy[2.n]metacyclophan-1-enes and dimethoxy[2.n]metacyclophane-1,2-diols, in which latter one was converted to dimethoxy[2.n]metacyclophane-1,2-diones by Albright–Goldman oxidation.