期刊
SYNTHESIS-STUTTGART
卷 -, 期 7, 页码 1094-1098出版社
GEORG THIEME VERLAG KG
DOI: 10.1055/s-2008-1032120
关键词
alkynes; coupling; furans; palladium; ring closure
3-(2-Iodophenyl)-3-oxopropanoic acid derivatives reacted efficiently with various terminal alkynes in the presence of catalytic amounts of dichlorobis(triphenylphosphine)palladium and copper(l) iodide and two molar amounts of triethylamine in N,N-dimethylformamide at room temperature to afford the corresponding (Z)-2- [(Z)-3-alkylideneisobenzofuran-1 (3 H)-ylidene]acetic acid derivatives in reasonable yields.
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