Engaging the Pyridine-DMAD Zwitterion in a Novel Strategy for the Selective Synthesis of Highly Substituted Benzene and Cyclopentenedione Derivatives
作者:Vijay Nair、Abhilash N. Pillai、P. B. Beneesh、Eringathodi Suresh
DOI:10.1021/ol051723w
日期:2005.10.1
[reaction: see text] The pyridine-mediated reaction of dimethylacetylenedicarboxylate and cyclobutene-1,2-diones affords selective access to either hexasubstituted benzene derivatives or cyclopentenedione derivatives depending on the concentration of pyridine.