Efficient synthesis of allylic azides and one-pot regioselective synthesis of 1,4-disubstituted 1,2,3-triazoles from homoallyl alcohols
作者:P. Surendra Reddy、V. Ravi、B. Sreedhar
DOI:10.1016/j.tetlet.2010.05.097
日期:2010.8
operationally simple synthesis of allylic azides and one-pot synthesis of 1,4-disubstituted 1,2,3-triazoles from homoallyl alcohols. Synthesis of allylic azides involves the palladium-catalyzed hydroazidation of unactivated olefins with migration of double bond. This hydroazidation can be coupled to Cu(I) promoted 1,3-dipolar cycloaddition to afford the corresponding 1,4-disubstituted 1,2,3-triazoles.
该方案是为了方便且操作上简单地合成烯丙基叠氮化物和从高烯丙基醇一锅法合成1,4-二取代的1,2,3-三唑。烯丙基叠氮化物的合成涉及具有双键迁移的未活化烯烃的钯催化的氢化叠氮化。该加氢叠氮可与Cu(I)促进的1,3-偶极环加成反应偶联,得到相应的1,4-二取代的1,2,3-三唑。