Palladium-Catalysed Synthesis of Dibenzo[de,g]quinolines. A Novel Approach to the B-Ring System of Aporphine-Related Heterocycles
作者:Anne-Elisabeth Gies、Michel Pfeffer、Claude Sirlin、John Spencer
DOI:10.1002/(sici)1099-0690(199908)1999:8<1957::aid-ejoc1957>3.0.co;2-i
日期:1999.8
Dibenzo[de,g]quinolines 5were formed by the palladium-catalysed heteroannulation of disubstituted alkynes and 1-iodo-10-(dimethylamino)phenanthrene (3c). Symmetric alkynes led to high levels of regioselectivity. These reactions constitute a new synthesis of the B-ring system of aporphine heterocycles.
二苯并[de,g]
喹啉5由
钯催化的双取代
炔烃和1-
碘-10-(
二甲氨基)
菲(3c)的杂环化形成。对称
炔烃导致高
水平的区域选择性。这些反应构成了
阿朴啡杂环 B 环系统的新合成。