A newmethod to introduce an acyl or a formyl group to β-position of aliphaticamines was studied using encarbamates, prepared from α-methoxycarbamates, as key intermidiates.
A one-pot synthesis of 2,3-dihydro-1H-pyrrolo[3,2-c]quinolines
作者:Miroslaw J. Tomaszewski、Adam Whalley、Yun-Jin Hu
DOI:10.1016/j.tetlet.2008.03.009
日期:2008.5
A one-pot synthesis of the 2,3-dihydro-1H-pyrrolo[3,2-c]quinoline core from substituted 2-iodoanilines and 2,3-dihydro-1H-pyrrole was achieved using 10 mol % Pd(PPh3)4, and K2CO3 in 1,4-dioxane at 170 °C for 1 h in a microwave oven. This reaction can be carried out on a gram scale. The proposed mechanism involves a Heck-coupling reaction followed by intra-molecular Schiff base formation and double
使用10 mol%Pd()可以由取代的2-碘苯胺和2,3-二氢-1 H-吡咯一锅法合成2,3-二氢-1 H-吡咯并[3,2- c ]喹啉核将PPh 3)4和K 2 CO 3在1,4-二恶烷中的溶液在170°C的微波炉中加热1小时。该反应可以以克为单位进行。拟议的机制涉及Heck偶联反应,然后在分子内席夫碱形成和双键迁移。
The facile construction of indole alkaloid models: A tandem cascade approach for the synthesis of a model for pseudocopsinine
作者:Philip J. Parsons、Clive S. Penkett、Michael C. Cramp、Robert I. West、E. Sarah Warren
DOI:10.1016/0040-4020(95)00915-9
日期:1996.1
A short and concise route to the pseudocopsinine skeleton is reported which relies on a tandem radical cascade to furnish five fused rings in one step.