An Approach to One-Pot Regioselective Synthesis of Indenones through Palladium-Catalyzed Annulation in Water
作者:Karu Ramesh、Gedu Satyanarayana
DOI:10.1002/ejoc.201800591
日期:2018.8.15
A one‐pot synthesis of indenones, was presented. The reaction involved palladium catalyzed annulation of ortho‐halobenzaldehydes with internal alkynes. Notably, this process was successful in water as the sole green solvent. Significantly, unlike earlier reports, this protocol showed excellent regioselectivity with unsymmetrical alkylarylacetylenes. Further, the strategy was extended to a one‐pot synthesis
介绍了茚酮的一锅法合成。该反应涉及钯催化的邻卤苯甲醛与内部炔烃的环化。值得注意的是,这个过程在水作为唯一的绿色溶剂中是成功的。值得注意的是,与之前的报道不同,该方案对不对称的烷基芳基乙炔表现出出色的区域选择性。此外,该策略扩展到新木脂素的一锅合成。