Experimental and Theoretical Investigation of Hydrogenative Cyclization of Allenynes
作者:Hyo-Tong Kim、Hyo-Sang Yoon、Woo-Young Jang、Youn K. Kang、Hye-Young Jang
DOI:10.1002/ejoc.201100280
日期:2011.7
Upon platinum-catalyzed hydrogenation, allenynes underwent reductive cyclization to provide hetero- and carbocycles with completely controlled regio- and stereoselectivity. By employing hydrogen as a reductant, the use of stoi
在铂催化的氢化作用下,丙炔进行还原环化以提供具有完全受控的区域和立体选择性的杂环和碳环。通过使用氢气作为还原剂,使用 stoi
A Direct Entry to Bicyclic Cyclobutenes via Platinum-Catalyzed Cycloisomerization of Allenynes
Allenynes underwent cycloisomerization in the presence of a catalytic amount of platinum(II) chloride at 80 °C to give bicyclic cyclobutenes. A mechanism involving non-classical carbocationic intermediates was proposed for the formation of cyclobutenes.