Abstract
Abstract Some new fluoroindolizines have been synthesised via 1,3-cycloaddition reactions between pyridinium (trifluoroacetyl)methylide (I) and fluorinated dipolarophiles [CF 3 CN→(II); CF 3 CCCF 3 →(III) (mainly) + (IV) and (V); CF 3 CCH→(VI); CF 3 CFCF 2 → (VII)] and dimethyl acetylenedicarboxylate [→(VIII)]. Treatment of (III) with base converted it to (IX).
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