Transition-Metal-Free Quinoline Synthesis from Acetophenones and Anthranils via Sequential One-Carbon Homologation/Conjugate Addition/Annulation Cascade
作者:Sandip Balasaheb Wakade、Dipak Kumar Tiwari、Pothapragada S. K. Prabhakar Ganesh、Mandalaparthi Phanindrudu、Pravin R. Likhar、Dharmendra Kumar Tiwari
DOI:10.1021/acs.orglett.7b02429
日期:2017.9.15
the construction of functionalized quinolines from readily available acetophenones and anthranils is reported. This one-pot reaction cascade involves in situ generation of α,β-unsaturated ketones from the acetophenone via one-carbon homologation by DMSO followed by the aza-Michael addition of anthranils and subsequent annulation. DMSO acted in this reaction not only as solvent but also as one carbon source
据报道,无过渡金属的方法可从容易获得的苯乙酮和蒽基构建官能化喹啉。该一锅法反应级联涉及通过DMSO的一碳同系物从苯乙酮中原位生成α,β-不饱和酮,然后通过aza-Michael加入蒽并随后进行环化反应。DMSO在该反应中不仅充当溶剂,而且充当一种碳源,因此为合成3-取代的喹啉提供了一种极富原子经济性和环境友好性的方法。