Cross-Diels−Alder Reactions of 6-Oxo-1-Sulfonyl-1,6-Dihydropyridine-3-Carboxylates
作者:Marie-Laure Teyssot、Anh-Tuan Lormier、Isabelle Chataigner、Serge R. Piettre
DOI:10.1021/jo062186b
日期:2007.3.1
and suppression of the transformation of 1 into unreactive pyridines 3. Whereas the Coperearrangement from IED to NED occurs under thermal conditions, no evidence of its involvement underhighpressure could be detected. These and other data point to similar activation energies for the NED and IED processes under these conditions.