1: With lithium diisopropyl amide in tetrahydrofuran T=-78°C; 2: With titanium(III) chloride; lithium in ethylene glycol dimethyl ether 24 h; Heating; Further stages.;
参考文献
Katritzky; Ji; Fang; Prakash
Journal of Organic Chemistry, 2001 , vol. 66, # 16 p. 5613 - 5615