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.
Bridged to Fused Ring Interchange. Methodology for the Construction of Fused Cycloheptanes and Cyclooctanes. Total Syntheses of Ledol, Ledene, and Compressanolide
作者:S. L. Gwaltney、S. T. Sakata、K. J. Shea
DOI:10.1021/jo961005a
日期:1996.1.1
type two intramolecular Diels-Alder reaction (T2IMDA) is an efficient method for the formation of medium rings. The methodology is particularly effective for the construction of seven- and eight-memberedrings. A strategy for the synthesis of functionalized cycloheptanes and cyclooctanes has been developed that involves a bridged to fused ring interchange. The T2IMDA provides a synthesis for rigid
Intramolecular Carboamination of Aminodienes to <i>N</i>‐Heterocycles via C−N Bond Activation
作者:Xuyang Yan、Bangkui Yu、Hongchi Liu、Hanmin Huang
DOI:10.1002/anie.202316563
日期:2024.2.19
An expedient annulative carboamination of aminodienes via C−N bond activation enabled by a unique I2/Ni or benzylhalide/Ni-catalytic system is described. This reaction features high atom-economy and provides rapid access to a range of pyrrolidines, piperidines, and tetrahydroisoquinoline derivatives.
描述了一种通过独特的 I 2 /Ni 或苄基卤/Ni 催化系统实现的 CN 键活化对氨基二烯进行便利的环碳胺化。该反应具有高原子经济性,可以快速获得一系列吡咯烷、哌啶和四氢异喹啉衍生物。
ARCHER, DAVID A.;BROMIDGE, STEVEN M.;SAMMES, PETER G., J. CHEM. SOC. PERKIN TRANS. PT 1,(1988) N2, C. 3223-3228
作者:ARCHER, DAVID A.、BROMIDGE, STEVEN M.、SAMMES, PETER G.