Ruthenium-Catalyzed Cycloisomerizations of Diynols
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-memberedrings 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.