926657-75-2Relevant academic research and scientific papers
Novel methods for the synthesis of 5-substituted-3-carboxy-2,5- and 4,5-dihydrothiophenes and 5-substituted 2- and 3-sulfolenes
Wilkinson, James A.,Ardes-Guisot, Nicolas,Ducki, Sylvie,Leonard, John
, p. 1065 - 1073 (2007)
Various approaches to the syntheses of 5-substituted-3-carbomethoxy-2,5-dihydrothiophenes and their product sulfolenes, required as synthetic precursors for tangutorine, are described. An efficient route to 3,5-disubstituted-4,5-dihydrothiophenes and henc
