Synthesis of 3,5-Diaryl-4-fluorophthalates by [4+2]-Cycloaddition and Subsequent Site-Selective Suzuki-Miyaura Reactions
作者:Peter Langer、Muhammad Ibad、Obaid-Ur-Rahman Abid、Muhammad Nawaz、Muhammad Adeel、Alexander Villinger
DOI:10.1055/s-0029-1218556
日期:2010.1
The (4+2) cycloaddition of 1-ethoxy-2-fluoro-1,3- bis(trimethylsilyloxy)-1,3-diene with dimethyl acetylenedicarbox- ylate (DMAD) afforded dimethyl 4-fluoro-3,5-dihydroxyphthalate. Site-selective Suzuki-Miyaura reactions of its bis(triflate) provide a convenient approach to 3,5-diaryl-4-fluorophthalates.
1-乙氧基-2-氟-1,3-双(三甲基甲硅烷氧基)-1,3-二烯与乙炔二羧酸二甲酯(DMAD)的(4+2)环加成得到4-氟-3,5-二羟基邻苯二甲酸二甲酯。其双(三氟甲磺酸酯)的位点选择性 Suzuki-Miyaura 反应为制备 3,5-二芳基-4-氟邻苯二甲酸酯提供了一种方便的方法。