作者:Barry M. Trost、Michael T. Rudd
DOI:10.1021/ja043097o
日期:2005.4.1
[CpRu(CH(3)CN)(3)]PF(6). The formation of five- and six-membered rings is possible using this methodology. Secondary diynols react to form single geometrical isomeric dienones and -als. Primary diynols undergo a cycloisomerization as well as a hydrative cyclization process. The utility of primary diynol cycloisomerization is demonstrated in a synthesis of (+)-alpha-kainic acid.
在催化量的 [CpRu(CH(3)CN)(3)]PF(6) 存在下,各种含有叔、仲和伯炔醇的二炔醇会发生环异构化反应以形成二烯酮和二烯醛。使用这种方法可以形成五元环和六元环。二级二炔醇反应形成单一几何异构二烯酮和-als。伯二炔醇经历环异构化以及水合环化过程。在 (+)-α-红藻氨酸的合成中证明了初级二炔醇环异构化的效用。