Intramolecular reactions of 2-propynylsilanes with n-acyliminium ions
作者:Wim J. Klaver、Marinus J. Moolenaar、Henk Hiemstra、W.Nico Speckamp
DOI:10.1016/s0040-4020(01)86638-2
日期:1988.1
precursors lead to bridged azabicyclic systems 34–45 (Table I), containing the uncommon α-allenic amide functionality. After introduction of a tert-butoxycarbonyl or a tosyl group onto the lactam nitrogen atom, these molecules react with cuprates in an SN2' fashion. The products 52–58 (Table II) are angularly functionalized trans-fused carbobicycles containing a 1,3-diene moiety.
2-丙炔基硅烷与环状N-酰基亚胺离子前体的分子内酸辅助反应会导致桥连的氮杂双环体系34 – 45(表I),其中含有罕见的α-烯丙基酰胺官能团。在内酰胺氮原子上引入叔丁氧基羰基或甲苯磺酰基后,这些分子以S N 2'的方式与铜酸盐反应。产物52 – 58(表II)是含有1,3-二烯部分的有角度官能化的反式融合碳环。
KLAVER, WIM J.;MOOLENAAR, MARINUS J.;HIEMSTRA, HENK;SPECKAMP, W. NICO, TETRAHEDRON, 44,(1988) N 13, 3805-3818
作者:KLAVER, WIM J.、MOOLENAAR, MARINUS J.、HIEMSTRA, HENK、SPECKAMP, W. NICO
DOI:——
日期:——
Nickel-Catalyzed Hydroamination and Hydroalkoxylation of Enelactams with Unactivated Amines and Alcohols