Mass-spectrometric approach to the determination of the structure of the product from irradiation of 2,5-dimethyl-3,4-diphenylcyclopentadiene dimer
Abstract
The symmetric irradiation product of 2,5-dimethyl-3,4-diphenylcyclopentadienone dimer (1) was proven by mass spectrometry to have the structure (3), of symmetry C2ν; a new technique for the preparation of β-deuteriated ketones is described.