Henry N. C. Wong, Franz Sondheimer
1980
Citations
0
Influential Citations
31
Citations
Journal
Tetrahedron Letters
Abstract
Treatment of the di-lithium derivative of 1,2-diethynyl-benzene (1) with o-xylene-α,α′-diol di-p-toluenesulphonate (2) in tetrahydrofuran led to 5,12-dihydronapthacene (5) as the only identifiable product. This reaction presumably involves 5,12-dihydro-6,11-didehydronaphthacene (4) as an intermediate, and this was confirmed by the formation of 5,12-dihydro-6,11-dideuterio-naphthacene when the reaction was carried out in tetrahydrofuran-d8.