27998-45-4Relevant academic research and scientific papers
Small Rings, 33. Attempts to Synthesize Diphenyltetrahedrane
White, Emil H.,Winter, Rudolph E. K.,Graeve, Rolf,Zirngibl, Ulrich,Friend, Earl W.,et al.
, p. 3906 - 3915 (2007/10/02)
Carbene 7, formed on photochemical or thermal excitation of (2,3-diphenyl-2-cyclopropen-1-yl)diazomethane (6i), splits mostly into two acetylenes 8 and 9 instead of undergoing an intramolecular cycloaddition.Photolysis of the Masamune ketone 16 depending on the reaction conditions gives either p-terphenyl or a mixture of the two cyclooctatetraens 18 and 19.The intermediate formation of tetrahedrane 10 would fit into the mechanistic picture of this fragmentation.
