Structure determination of photocyclodimers of 2-cycloalkenones via enantioselective gas chromatography and GC/MS analysis
作者:Elke Anklam、Wilfried A. König、Paul Margaretha
DOI:10.1016/s0040-4039(00)94218-7
日期:1983.1
Enantioselective gas chromatography combined with GC/MS analysis allows the direct assignment of constitution and configuration of the photocyclodimers of cyclicenones 1a – 1h.
Photodimerization of isophorone in supercritical trifluoromethane and carbon dioxide
作者:Bruce J. Hrnjez、Anil J. Mehta、Marye Anne Fox、Keith P. Johnston
DOI:10.1021/ja00189a047
日期:1989.3
An examination of the regio- and stereoselectivity for the photodimerization of isophorone in both supercritical CHFsub 3} and COsub 2} as a function of pressure is presented. This selectivity is discussed in terms of solvent polarity and differential solvent reorganization. The stereoselectivity is influenced mostly by solvent reorganization, and the regioselectivity is influenced by both solvent