Preparation of Ethyl Arylpropiolates from Aryl Iodides by Palladium-Catalyzed Cross-Coupling Reaction
作者:Takao Sakamoto、Futoshi Shiga、Akito Yasuhara、Daishi Uchiyama、Yoshinori Kondo、Hiroshi Yamanaka
DOI:10.1055/s-1992-26214
日期:——
The palladium-catalyzed cross-coupling reaction of aryl iodides with 3,3,3-triethoxy-1-propyne gave 1-aryl-3,3,3-triethoxy-1-propynes which were converted to the corresponding ethyl arylpropiolates. The arylpropiolates were also synthesized from the cross-coupling reactions of aryl iodides with 2-ethoxycarbonyl-1-ethynylzinc chloride or ethyl (tributylstannyl)propiolate, but the reactions were not generally applicable.
钯催化的芳基碘与3,3,3-三乙氧基-1-丙炔的交叉偶联反应生成1-芳基-3,3,3-三乙氧基-1-丙炔,这些产物被转化为相应的乙基芳基丙二酸酯。芳基丙二酸酯也可以通过芳基碘与2-乙氧羰基-1-乙炔基锌氯或乙基(三丁基锡基)丙二酸酯的交叉偶联反应合成,但这些反应并不普遍适用。