A Convenient Method for the Synthesis of (Z)-α-Fluoroacrylates: Lewis Base-catalyzed Carbonyl Fluoroolefination Using Fluoro(trimethylsilyl)ketene Ethyl Trimethylsilyl Acetal
摘要:
建立了一种非常有用的方法,可在路易斯碱催化剂存在下,从各种醛和氟(三甲基硅基)乙酮三甲基硅基缩醛中立体选择性地合成 (Z)-α-氟丙烯酸酯。由氟乙酸乙酯轻松制备的乙烯酮缩醛可在温和的条件下以高产率和优异的 Z 立体选择性生成 α-氟丙烯酸酯。
Microwave-Assisted One-Pot
Synthesis of α-Fluoro-α,β-Unsaturated
Esters under Solvent-Free Conditions
作者:Xiaochun Yu、Aishan Ren、Xiongjun Yang、Jing Hong
DOI:10.1055/s-2008-1078213
日期:——
A microwave-assisted approach for the synthesis of α-fluoro-α,β-unsaturated esters from ethyl bromofluoroacetate, aldehydes, and triphenylphosphine in the presence of Zn-Cu undersolvent-freeconditions was achieved. The reaction was accomplished within five minutes with good product yields.
Elkik, Elias; Francesch, Charlette, Bulletin de la Societe Chimique de France, 1986, # 3, p. 423 - 428
作者:Elkik, Elias、Francesch, Charlette
DOI:——
日期:——
A Convenient Method for the Synthesis of (<i>Z</i>)-α-Fluoroacrylates: Lewis Base-catalyzed Carbonyl Fluoroolefination Using Fluoro(trimethylsilyl)ketene Ethyl Trimethylsilyl Acetal
作者:Makoto Michida、Teruaki Mukaiyama
DOI:10.1246/cl.2008.890
日期:2008.8.5
A highly useful method is established for the stereoselective synthesis of (Z)-α-fluoroacrylates from various aldehydes and fluoro(trimethylsilyl)ketene ethyl trimethylsilyl acetal in the presence of a Lewis base catalyst. The ketene acetal, easily prepared from ethyl fluoroacetate, affords α-fluoroacrylates in high yields with excellent Z stereoselectivities under mild conditions.
建立了一种非常有用的方法,可在路易斯碱催化剂存在下,从各种醛和氟(三甲基硅基)乙酮三甲基硅基缩醛中立体选择性地合成 (Z)-α-氟丙烯酸酯。由氟乙酸乙酯轻松制备的乙烯酮缩醛可在温和的条件下以高产率和优异的 Z 立体选择性生成 α-氟丙烯酸酯。