作者:Takeshi Takeda、Kensaku Sato、Akira Tsubouchi
DOI:10.1055/s-2004-822367
日期:——
coupling of bis(phenylthio)methyltributylstannane with alcohols. The dithioorthoformates thus prepared are useful precursors for alkoxymethylidene complexes of titanium, which transform carbonyl compounds into a variety of enol ethers. Even the alkoxymethylidene complexes having a terminal olefin moiety can be prepared and employed for carbonyl olefination without formation of ring-closing metathesis
通过溴化铜(II)促进双(苯硫基)甲基三丁基锡烷与醇的氧化偶联,获得了具有各种烷氧基的二硫代原甲酸酯。由此制备的二硫代原甲酸酯是钛的烷氧基亚甲基配合物的有用前体,其将羰基化合物转化为各种烯醇醚。甚至可以制备具有末端烯烃部分的烷氧基亚甲基配合物并将其用于羰基烯化而不形成闭环复分解产物。