Selective Synthesis of Phenanthrenes and Dihydrophenanthrenes via Gold-Catalyzed Cycloisomerization of Biphenyl Embedded Trienynes
作者:Ana Milián、Patricia García-García、Adrián Pérez-Redondo、Roberto Sanz、Juan J. Vaquero、Manuel A. Fernández-Rodríguez
DOI:10.1021/acs.orglett.0c03067
日期:2020.11.6
Readily available o′-alkenyl-o-alkynylbiaryls, a particular type of 1,7-enynes, undergo a selective cycloisomerization reaction in the presence of a gold(I) catalyst to give interesting phenanthrene and dihydrophenanthrene derivatives in high yields. The solvent used provokes a switch in the evolution of the gold intermediate and plays a key role in the reaction outcome.
容易得到O' -烯基- ø -alkynylbiaryls,的1,7-烯炔的特定类型,经历在金(I)催化剂的存在下选择性环异构反应,得到有趣菲和二氢菲衍生物以高产率。所用溶剂在金中间体的生成过程中引起转换,并在反应结果中起关键作用。