1: in tetrahydrofuran T=0 - 20°C; 2.66667 h; Inert atmosphere; 2: With hydrogenchloride; water in tetrahydrofuran T=0°C; 3: With toluene-4-sulfonic acid in toluene T=125°C; 16 h;
参考文献
Reichle, Markus A.; Breit, Bernhard
Angewandte Chemie - International Edition, 2012 , vol. 51, # 23 p. 5730 - 5734