Abstract
Hypervalent iodine(III) compounds have been extensively used in organic syntheses due to their low toxicity, ready availability and easy handling. [Hydroxyl(tosyloxy)iodo]benzene (HTIB), phenyliodine(III) diacetate (PIDA) and phenyliodine(III) bis(trifluoroacetate) (PIFA) are the most frequently used and easily available reagents in the family of iodine compounds. Polyethylene glycols (PEG) are well-known to be inexpensive, recoverable, non-toxic, thermally stable, and biological compatible polymers. Polyethylene glycols are most commonly employed as a support or a phase-transfer catalyst in various organic transformations. Compared with classical molecular solvents, the polyethylene glycols are environmentally benign reaction media. In this work, catalytic reaction of hypervalent iodine(III) reagents and PEG-400 will be applied to prepare imidazo[2,1-a]isoquinolines and substituted quinolines.
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