2-氟-5-溴吡啶置于lithium Diisopropyl Amide,硼酸三甲酯,碳酸氢钠体系中,用 四氢呋喃,正己烷 作为反应溶剂,化学反应 1.5H,以80%的收率获得产物5-溴-2-氟吡啶-3-硼酸
参考文献:Versatile Synthesis Of 3,5-Disubstituted 2-Fluoropyridines And 2-Pyridones
标题:Versatile Synthesis Of 3,5-Disubstituted 2-Fluoropyridines And 2-Pyridones
摘要:5-Bromo-2-Fluoro-3-Pyridylboronic Acid (3) Was Prepared In High Yield By Ortho-Lithiation Of 5-Bromo-2-Fluoropyridine (1),Followed By Reaction With Trimethylborate. Suzuki Reaction Of 3 With A Range Of Aryl Iodides Gave 3-Monosubstituted 5-Bromo-2-Fluoropyridines 4 In Excellent Yields. A Second Suzuki Reaction Utilizing The Bromo Constituent Of 4 With Aryl And Heteroaryl Boronic Acids Provided 3,5-Disubstituted 2-Fluoropyridines 5,Which In Turn Could Be Converted To The Corresponding 2-Pyridones 6.
DOI:10.1021/jo026864F