sulfuric acid in tetrahydrofuran
0.5 h; Ambient temperature;
参考文献
Banwell, Martin G.; Corbett, Madelaine; Gulbis, Jacqueline; Mackay, Maureen F.; Reum, Monica E.
Journal of the Chemical Society, Perkin Transactions 1: Organic and Bio-Organic Chemistry (1972-1999), 1993 , # 8 p. 945 - 964