反应条件
1: PBr3 / diethyl ether / 0.33 h / -25 °C 2: BuLi, N,N'-dimethyl-N,N'-propyleneurea / hexane; tetrahydrofuran / 1.) -78 deg C, 1 h; 2.) -50 deg C, 1 h 3: KOH / diethyl ether; methanol / 1 h / Ambient temperature 4: Na, dibenzo<18>crown-6 / liquid ammonia; tetrahydrofuran / 0.03 h View Scheme
参考文献
Helvetica Chimica Acta, , vol. 68, p. 1519 - 1539
