反应条件
1: 3,4-dihydro-2H-pyran With n-butyllithium; potassium tert-butylate in tetrahydrofuran T=-78°C; 1 h; Cooling with acetone-dry ice; 2: boric acid trimethyl ester in tetrahydrofuran T=0°C; 1 h; Cooling with ice; 3: 2,3-dimethylbutane-2,3-diol in tetrahydrofuran; acetic acid T=20°C;
参考文献
Butkevich, Alexey N.; Corbu, Andrei; Cossy, Janine; Meerpoel, Lieven; Bonnet, Pascal; Stansfield, Ian; Angibaud, Patrick
Organic Letters, 2012 , vol. 14, # 19 p. 4998 - 5001,4