Intramolecular Titanium-Mediated Aminocyclopropanation of Terminal Alkenes: Easy Access to Various Substituted Azabicyclo[<i>n</i>.1.0]alkanes<sup>1</sup>
作者:Gerd-Dieter Tebben、Karsten Rauch、Christian Stratmann、Craig M. Williams、Armin de Meijere
DOI:10.1021/ol027352q
日期:2003.2.1
[reaction: see text] A variety of substituted azabicyclo[n.1.0]alkanes were synthesized by intramolecular titanium-mediated cyclopropanation of N-benzyl-N-(2-alkylalk-3-enyl)formamides and N-benzyl-N-alkadienylformamides. N-Benzylpyrroline upon treatment with Grignard reagents undergoes a titanium-mediated carbomagnesiation to yield N-benzyl-N-(2-alkylbut-3-enyl)amines.