4H-dinaphtho[2,1-f:1′,2′-h][1,5]dithionin-S,S′-tetroxide: Preparation, structure elucidation and facile intramolecular [2+2]-photocyclization
作者:Sergio Cossu、Antonio Dore、Ottorino De Lucchi、Vittorio Lucchini、Giovanni Valle
DOI:10.1016/s0040-4020(01)85750-1
日期:1993.1
The preparation of compound 1, a conformational study in solution and the unexpectedly facile rearrangement into 2 via photochemical intramolecular [2+2]-cycloaddition is described: the structure of these compounds have been investigated by NMR and X-ray diffraction.