SEARCH Articles Figures Tables 3- thiophene, synthesis Benzo thiophene 1,3-diphenyl-, ring synthesis Benzo thiophenes ring synthesis Ring synthesis benzo thiophene Syntheses of Thiophens by Ring-closure Reactions Syntheses of Thiophens from other Ring Systems Thieno thiophene, ring synthesis Thiophene 2- methyl-5-phenyl-, ring synthesis Thiophene 2-ethyl-5-methyl-, ring synthesis Thiophene 2.5- diethyl-, ring synthesis Thiophene 3- methyl-, ring synthesis Thiophene rings Thiophenes continued ring synthesis Thiophenes ring synthesis Thiophenes, synthesis