16337-16-9Relevant academic research and scientific papers
The newly modified McMurry reaction toward the improved synthesis of cyclic paraphenylacetylenes
Kawase, Takeshi,Ueda, Noriko,Tanaka, Kenji,Seirai, Yohko,Oda, Masaji
, p. 5509 - 5511 (2007/10/03)
Treatment of stilbenedialdehyde derivatives with low-valent titanium generated in a mixed solvent of DME and toluene favored reductive cyclo-oligomerization to give macrocyclic cyclophanepolyenes in relatively good yields leading to improved or new synthesis of a series of cyclic paraphenylacetylenes ([6] to [9]CPPAs).
THE DIANION OF PARACYCLOPHENE; A 20 ?-PERIMETER SPECIES?
Tanner, David,Wennerstroem, Olof,Norinder, Ulf,Muellen, Klaus,Trinks, Rainer
, p. 4499 - 4502 (2007/10/02)
A new synthesis of paracyclophene (1) is presented.On reduction, (1) forms a stable dianion which is neither diatropic nor paratropic.The apparent high symmetry of the dianion and the observed NMR chemical shifts are best explained by a rapid inter
