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Sal’nikov, G. E.; Genaev, A. M.; Mamatyuk, V. I.; Shubin, V. G.
Russian journal of organic chemistry, 07/2008, Letnik: 44, Številka: 7Journal Article
A strong temperature dependence was observed of chemical shifts in the 13 C NMR spectra of 3b,4- exo -4a,5-tetramethyl-3b,4,4a,5-tetrahydro-4 H -cyclopropa a phenalen-5-yl cation and its endo -epimer revealing their stereochemical nonrigidity.
