高價碘(III)化合物由於是一種低毒性、方便使用、容易處理的反應試劑而廣泛被使用。其中以[hydroxyl(tosyloxy)iodo]benzene (HTIB) 、phenyliodine(III) diacetate (PIDA) 、phenyliodine(III) bis(trifluoroacetate) (PIFA)等最常被使用在合成化學。 聚乙二醇(polyethylene glycol; PEG) 眾所皆知是價格便宜、可回收、無毒、具熱穩定性和生物相容性的聚合物;聚乙二醇於各種的有機轉化中,最常被當作支持物或是相轉移的觸媒,與典型的分子性溶媒相較,聚乙二醇是更環保有效的反應媒介。 本研究計劃利用高價碘(III)試劑在PEG-400中進行2-aminothiazoles及quinoxalines衍生物的合成研究。
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, hypervalent iodine(III) reagents and PEG-400 will be applied to prepare 2-aminothiazoles and quinoxaline derivatives.