Attempted [2]Catenane Synthesis via a Quasi[1]catenane by a Templated Backfolding Strategy
作者:Luuk Steemers、Martin J. Wanner、Bart R. C. van Leeuwen、Henk Hiemstra、Jan H. van Maarseveen
DOI:10.1002/ejoc.201701325
日期:2018.2.21
construct a [2]catenane was attempted via a quasi[1]catenane showing an inverted spiro geometry. The template is covalently connected to the ketal-connected semi-perpendicular arranged linear precursors and spatially directs the sterically congested backfolding macrocyclizations that are required to give a quasi[1]catenane. So far, we are unable to hydrolyze the cyclic ketal to liberate the [2]catenane.
Application of electron spin resonance spectroscopy to problems of structure and conformation. XXIX. Aliphatic semidiones. XXIX. Cycloheptane-1,2-semidione
作者:Glen A. Russell、Robert G. Keske、George Holland、John Mattox、R. S. Givens、K. Stanley
DOI:10.1021/ja00840a048
日期:1975.4
mediated intramolecular reductive cyclization of activated dienes
作者:Subhash P. Chavan、Krishna S. Ethiraj
DOI:10.1016/0040-4039(95)00190-n
日期:1995.3
Facile intramolecular cyclisation of activated tethered dienes mediated by magnesium in methanol at room temperature is described.