Reaction of 10,10-dimethyl-9-trimethylsiloxy-9,10-dihydrophenanthrene-9- carbonitrile with acids

Article abstract of DOI:10.1134/S1070428011070141

The behavior of 10,10-dimethyl-9-trimethylsiloxy-9,10-dihydrophenanthrene- 9-carbonitrile in trifluoromethanesulfonic acid and acid systems CF ₃SO₃H-CD₂Cl₂, HSO ₃F-SO₂ClF-CD₂Cl₂, and CF ₃COOH-CD₂Cl₂ were studied by NMR spectroscopy. Principal reaction schemes were determined; the first step in these schemes is protonation of the initial compound at the oxygen or nitrogen atom.