Functionalization of Monofluoroallene and the Synthesis of Aryl-Substituted Conjugated Fluorodienes
作者:Yunfeng Lan、Gerald B. Hammond
DOI:10.1021/ol026196k
日期:2002.7.1
3a, prepared from 1, cyclized easily to 4 but preserved its fluoroallenyl integrity under oxidation and S(N)2 displacement to yield aldehyde, amine, mesylate, and halide 6. Allylic isomerization yielded 2-halo-1-fluoro-1,3-butadiene 7, which underwent a Suzuki coupling to give aryl-substituted conjugated diene 8.
[反应:参见文本]由1制备的4-氟烯丙醇3a易于环化成4,但在氧化和S(N)2置换下仍保留其氟代烯基完整性,从而产生醛,胺,甲磺酸酯和卤化物6。烯丙基异构化生成2-卤代-1-氟-1,3-丁二烯7,经过Suzuki偶联得到芳基取代的共轭二烯8。