1: With titanium(IV) isopropylate in tetrahydrofuran T=20°C; 1 h; 2: With boron trifluoride diethyl etherate in diethyl ether T=20°C; 0.5 h; 3: With sodium hydroxide Further stages.;
lithium diisopropyl amide in tetrahydrofuran T=25°C; 6 h; Yields of byproduct given;
参考文献
Sammes, Michael P.; Lee, Cheuk Man; Katritzky, Alan R.
Journal of the Chemical Society, Perkin Transactions 1: Organic and Bio-Organic Chemistry (1972-1999), 1981 , p. 2476 - 2482