Synthesis of chiral 4,4-disubstituted-dihydropyridazines
作者:Paul T. Buonora、Qun Zhang、Jennifer Sawko、Larry J. Westrum
DOI:10.1016/j.tetasy.2007.11.026
日期:2008.1
In this paper, a novel general route to the stereospecificsynthesis of chiral dihydropyridazines relying on the stereospecific formation of 1,4-diones is presented. The chirality is provided through the application of bicyclic lactams to the synthesis of the required diones. Treatment of the diones with hydrazine produces the pyridazine targets. In this report, the synthesis of four chiral 6-phenyl-4