1: With pyridine; tris(dimethylamino)-sulphonium difluorotrimethylsilicate in tetrahydrofuran T=-70°C; 0.0833333 h; 2: With 3,3-dimethyldioxirane in tetrahydrofuran; water; acetone T=-70°C; 0.25 h; Further stages.;
Cornforth, John; Sierakowski, Andrew F.; Wallace Timothy W.
Journal of the Chemical Society, Perkin Transactions 1: Organic and Bio-Organic Chemistry (1972-1999), 1982 , # 10 p. 2299 - 2316