tetrafluoroboric acid in dichloromethane; cyclohexane T=-17 - 5°C; 23.6667 h;

tetrafluoroboric acid in dichloromethane; cyclohexane T=-17 - 5°C; 23.6667 h;

tetrafluoroboric acid in n-heptane; 1,2-dichloro-ethane T=-15 - 20°C; Further byproducts given. Title compound not separated from byproducts;

1: With tetrafluorohydroboric acid in dichloromethane; cyclohexane T=-17 - 20°C; 23.6667 h; 2: With sodium hydroxide in dichloromethane; cyclohexane; water T=18 - 20°C; 0.25 h;