1: With chloro-trimethyl-silane in tetrahydrofuran
T=0°C; 4 h; Inert atmosphere;
2: With hydrogenchloride; water in tetrahydrofuran
T=20°C; 3 h; Inert atmosphere;
Jaxa-Chamiec, Albert A.; Sammes, Peter G.; Kennewell, Peter D.
Journal of the Chemical Society, Perkin Transactions 1: Organic and Bio-Organic Chemistry (1972-1999), 1980 , p. 170 - 175