作者:Bartłomiej Pigulski、Nurbey Gulia、Sławomir Szafert
DOI:10.1016/j.tetlet.2013.08.080
日期:2013.11
two butadiynyl monomers: symmetrical 5,5′-[hexa-2,4-diyne-1,6-diylbis(oxy)]bis(oxepan-2-one) (3-C4-3) and unsymmetrical 5-[5-(trimethylsilyl)penta-2,4-diyn-1-yl]oxy}oxepan-2-one (3-C4TMS) via Eglinton and Cadiot–Chodkiewicz couplings, respectively. Both compounds were obtained through an alternative Baeyer–Villiger oxidation of immediate ketone precursors 2-C4-2 and 2-C4TMS.
环己烷-1,4-二醇与炔丙基溴的取代反应得到4-(prop-2-yn-1-yloxy)环己醇。将该化合物氧化成相应的酮(2- C 2 H),然后氧化成乙炔γ-取代的ε-己内酯(3 - C 2 H)。后者化合物链延长两个丁二单体:对称5,5' - [己-2,4-二炔-1,6-二基双(氧基)]双(oxepan-2-酮)(3 -C 4 - 3)和不对称的5-[5-(三甲基甲硅烷基)penta-2,4-二炔-1-基]氧基}氧杂潘-2-酮(3 -C 4TMS)分别通过Eglinton和Cadiot–Chodkiewicz耦合。通过即时酮前体的替代拜尔-维利格氧化,得到两种化合物2 -C 4 - 2和2 -C 4 TMS。