📜2-氰基吡啶置于2,2,6,6-四甲基哌啶,正丁基锂,碘体系中,用 四氢呋喃 作为反应溶剂,化学反应 1.5H,以52%的收率获得产物2-氰-3-碘吡啶
参考文献:Synthesis Of Ortho-Substituted Cyanopyridines Through Lithio Intermediate Trapping
标题:Synthesis Of Ortho-Substituted Cyanopyridines Through Lithio Intermediate Trapping
摘要:Ortholithiation Of 4-Cyanopyridine Using 2,2,6,6-Tetramethylpiperidide (Litmp) And Trapping The Lithio Intermediate With Electrophiles Represents An Efficient And Straightforward Access To Ortho-Substituted-4-Cyanopyridines. The Cyano Group Can Be Used As An Ortho-Directing Group And Allows The Preparation Of 3-Halogeno-4-Cyanopyridines. Reactivity Of 2-And 3-Cyanopyridines Is Also Investigated And Seems To Give Similar Results. (C) 2004 Elsevier Ltd. All Rights Reserved.
DOI:10.1016/j.Tetlet.2004.11.021