Directed Alkyl Substitution of the Dodecahedrane Nucleus. The 1,4-Dimethyl, 1,6-Dimethyl, 1,4,16-Trimethyl Derivatives. Indanododecahedrane by Stepwise Dehydrogenation of a Benzylated Seco Derivative

Article abstract of DOI:10.1021/jo00383a017

A 1:1 mixture of finely divided titanium metal and 5percent platinum on alumina catalyzes the dehydrocyclization of secododecahedrane 3 to 1,6-dimethyldodecahedrane (4).A small quantity (10-15percent) of the monomethyl derivative is coproduced.This demeth