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    • 7. 发明授权
    • Process for producing fluorosulfuric acid aromatic-ring esters
    • 制备氟代硫酸芳环酯的方法
    • US09040745B2
    • 2015-05-26
    • US14128362
    • 2012-06-15
    • Akihiro IshiiTakehisa IshimaruTakako YamazakiManabu Yasumoto
    • Akihiro IshiiTakehisa IshimaruTakako YamazakiManabu Yasumoto
    • C07C303/24
    • C07C303/24C07C305/26
    • A production process of a fluorosulfuric acid aromatic-ring ester according to the present invention includes reaction of an aromatic-ring hydroxyl compound with sulfuryl fluoride (SO2F2) in the presence of a tertiary amine except pyridine and methylpyridine. The sulfuryl fluoride, used as the reactant in the production process according to the present invention, is widely adapted as a fumigant and is easily available on a large scale. Further, the target compound can be obtained rapidly with a high yield under moderate reaction conditions in the production process according to the present invention. In this way, all of the prior art problems can be solved in the production process according to the present invention. The production process according to the present invention is thus particularly useful for industrial production of the fluorosulfuric acid aromatic-ring ester.
    • 根据本发明的氟代硫酸芳环酯的制备方法包括在除吡啶和甲基吡啶之外的叔胺存在下,芳环羟基化合物与硫酰氟(SO 2 F 2)的反应。 在根据本发明的生产方法中用作反应物的硫酰氟被广泛地用作熏蒸剂,并且容易获得大量。 此外,在本发明的制造方法中,在中等反应条件下,可以快速获得目标化合物。 以这种方式,可以在根据本发明的制造方法中解决所有现有技术问题。 因此,本发明的制造方法特别适用于氟代硫酸芳香环酯的工业化生产。
    • 8. 发明授权
    • Process for producing α-substituted ester
    • α-取代酯的制备方法
    • US08278476B2
    • 2012-10-02
    • US13127955
    • 2009-10-22
    • Akihiro IshiiManabu Yasumoto
    • Akihiro IshiiManabu Yasumoto
    • C07C69/612
    • C07B53/00C07B55/00C07B2200/07C07C67/343C07C303/24C07C69/612C07C305/26
    • There is provided a process for producing an α-substituted ester by reaction of a fluorosulfuric acid ester of α-hydroxyester with a Grignard reagent in the presence of a zinc catalyst. It is newly found that the reaction for production of α-substituted esters, in which the raw reaction substrate is limited to expensive trifluoromethanesulfonic acid esters, can proceed favorably with the use of fluorosulfuric acid esters suitable for mass-production uses. By the use of the fluorosulfuric acid ester high in optical purity, it is possible to obtain the α-substituted ester with high optical purity upon inversion of the asymmetric carbon configuration. The process of the present invention can solve all of the prior art problems and can be applied for industrial uses.
    • 提供了在锌催化剂存在下,通过α-羟基酯的氟代硫酸酯与格氏试剂的反应制备α-取代的酯的方法。 新发现,通过使用适合于批量生产用途的氟代硫酸酯,可以有利地进行生产反应底物被限制为昂贵的三氟甲磺酸酯的α-取代酯的反应。 通过使用光学纯度高的氟代硫酸酯,可以通过不对称碳结构的反转获得具有高光学纯度的α-取代的酯。 本发明的方法可以解决所有现有技术的问题,并且可以应用于工业用途。