Palladium-catalysed heteroannulation with terminal alkynes: synthesis of phthalides 1
作者:Nitya G. Kundu、Manojit Pal、Bidisha Nandi
DOI:10.1039/a705450e
日期:——
The palladium–copper-catalysed heteroannulation of o-iodobenzoic acid 3 with terminal alkynes 4–18 leads to the synthesis of (Z)-3-alkylidenephthalides 19–33 as the major products. In certain cases, the formation of isocoumarins 34–37 is also observed.
钯-铜催化的o-碘苯甲酸3与末端炔烃4-18的杂环化反应主要合成得到(Z)-3-烷亚基苯并呋喃19-33。在某些情况下,也会观察到异香豆素34-37的形成。