Abstract
Three new pyridyl thienopyridines, 5-pyridin-2-yl-thieno[3,2-b ]pyridine, 6-pyridin-2-yl-thieno[2,3-b ]pyridine and 6-pyridin-2-yl-thieno[3,2-c ]pyridine, have been synthesized, each through a different synthetic sequence. Overall
yields ranged from 8% to 32%.
Key words
ring closure - fused-ring systems - heterocycles - pyridines - conjugation
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