A New Fragmentation in the Adamantane Series

Abstract

We recently ascertaincd that amidines (1) resct very readily with oxalyl dichloride to give imidazoline-4,5-dione hydrochlorides (2) [ 1~2 1 .

Transition metal complexes with cage-opened diamondoid tetracyclo[7.3.1.14,12.02,7]tetradeca-6.11-diene

“…Among preparatively available building blocks of this type are the unsaturated diamondoid derivatives 3,7-dimethylenebicyclo[3.3.1]nonane (5) and open-cage tetracyclo[7.3.1.1 4,12 .0 2,7 ]tetradeca-6.11-diene (6) that are readily available through fragmentations of the respective adamantine [25] and diamantine [26] dibromides. It was demonstrated that 5 forms a water and air-stable complex with Ag(I) 7 as well as a bipyramidal complex with Pt(II) [27].…”