A variety of substituted quinoline/pyridine, thiochromene and naphthalene derivatives, which might be of biological and medicinal value, were synthesized by copper‐catalyzed domino SN2′/coupling, SN2′/deacylation/coupling and SN2′/coupling/elimination reactions. The method provides a general and convenient approach to the synthesis of various substituted cyclic compounds from the corresponding Baylis–Hillman
Synthesis and Elimination Pathways of 1-Methanesulfonyl-1,2-dihydroquinoline Sulfonamides
作者:Ebenezer Ametsetor、Kwabena Fobi、Richard A. Bunce
DOI:10.3390/molecules28073256
日期:——
Subsequent efforts to eliminate the methylsulfonyl group from these derivatives (K2CO3, DMF, 90 °C) as a route to quinolines were met with mixed results. Although dihydroquinoline sulfonamides prepared from ethyl acrylate and acrylonitrile generally underwent elimination to give excellent yields of quinolines, those generated from 3-buten-2-one failed to undergo elimination and instead decomposed