Invention Grant
US09000216B2 Iodoarene derivative, method for manufacturing optically active spirolactone compound by using the same, and method for manufacturing optically active cycloadduct 有权
碘代衍生物,通过使用它们制造光学活性的己内酯化合物的方法,以及光学活性环加成物的制造方法

Iodoarene derivative, method for manufacturing optically active spirolactone compound by using the same, and method for manufacturing optically active cycloadduct
Abstract:
An optically active spirolactone compound is highly enantioselectively produced by using an iodoarene derivative which can be synthesized easily and which is not racemized easily. A hypervalent iodine compound precursor (iodoarene derivative) which was able to be designed flexibly was synthesized from 2,6-dihydroxyiodoarene by using 1,2-aminoalcohol as a chiral source in short steps, a hypervalent iodine compound was prepared in a reaction system (in situ) by using a catalyst quantity of the resulting precursor in the presence of a stoichiometric quantity of m-CPBA, and a spirolactonization reaction of 3-(1-hydroxy-2-naphthyl)propionic acid was induced. As a result, a corresponding spirolactone compound was obtained at a high enantiomeric excess.
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