Preparation and X-ray Crystal Study of Benziodoxaborole Derivatives: New Hypervalent Iodine Heterocycles
作者:Victor N. Nemykin、Andrey V. Maskaev、Margarita R. Geraskina、Mekhman S. Yusubov、Viktor V. Zhdankin
DOI:10.1021/ic201922n
日期:2011.11.7
3]iodoxoborol-3-ol, and similar 1-substituted trifluoroacetate derivatives of benziodoxaborole were prepared the hypochlorite oxidation of 2-fluoro-6-iodophenylboronic acid or 2-iodophenylboronic acid in acetic or trifluoroacetic acid, respectively. 1-Acetoxy substituted benziodoxaborole can be further converted to the respective trifluoroacetate by treatment with trifluoroacetic acid or to the 1-hydroxy derivative
制备了一系列在五元环中包含三价碘,氧和硼的杂环化合物,并通过X射线晶体学对其结构进行了研究。1-氯-4-氟-1- ħ -1λ 3 -苯并[ d ] [1,2,3] iodoxoborol -3-醇用2-氟-6- iodophenylboronic酸氯化合成,接着处理所述中间iododichloride的与水。1-乙酰氧基-4-氟-1- ħ -1λ 3 -苯并[ d ] [1,2,3] iodoxoborol -3-醇,1-乙酰氧基-1- ħ -1λ 3 -苯并[ d分别在乙酸或三氟乙酸中制备2-氟-6-碘苯基硼酸或2-碘苯基硼酸的次氯酸盐氧化] [1,2,3]碘氧杂硼酸-3-醇和类似的苯并d杂硼酸的1-取代的三氟乙酸酯衍生物。通过用三氟乙酸处理,可以将1-乙酰氧基取代的苯并恶唑硼酸酯进一步转化为相应的三氟乙酸酯,或者通过用NaHCO 3水溶液进行碱性水解,可以将其转化为1-羟基衍生物。1-