Friedel-Crafts acylation for the synthesis of aryl- and heteroaryl-(3-ethyl-4-nitrophenyl)-methanones
    9.
    发明申请
    Friedel-Crafts acylation for the synthesis of aryl- and heteroaryl-(3-ethyl-4-nitrophenyl)-methanones 审中-公开
    用于合成芳基和杂芳基 - (3-乙基-4-硝基苯基) - 甲酮的Friedel-Crafts酰化

    公开(公告)号:US20110087013A1

    公开(公告)日:2011-04-14

    申请号:US12897949

    申请日:2010-10-05

    申请人: Bernhard Knipp

    发明人: Bernhard Knipp

    摘要: The present invention concerns a synthesis process comprising the following steps (i) reacting 3-ethyl-4-nitrobenzoic acid with thionyl chloride to produce a 3-ethyl-4-nitrobenzoic acid chloride or a 3-ethyl-4-nitrobenzoic acid anhydride from 3-ethyl-4-nitrobenzoic acid by means of water cleavage and (ii) Friedel-Crafts acylation by reacting the 3-ethyl-4-nitrobenzoic acid chloride or the 3-ethyl-4-nitrobenzoic acid anhydride with an optionally substituted aryl-H to form an optionally substituted (3-ethyl-4-nitrophenyl)-aryl-methanone. In addition the present invention concerns compounds containing (3-ethyl-4-nitrophenyl)-aryl-methanone, characterized in that the optionally substituted aryl is an optionally substituted condensed aromate.

    摘要翻译: 本发明涉及一种合成方法,其包括以下步骤:(i)使3-乙基-4-硝基苯甲酸与亚硫酰氯反应,得到3-乙基-4-硝基苯甲酰氯或3-乙基-4-硝基苯甲酸酐,由 3-乙基-4-硝基苯甲酸,和(ii)通过使3-乙基-4-硝基苯甲酰氯或3-乙基-4-硝基苯甲酸酐与任选取代的芳基 - 形成任选取代的(3-乙基-4-硝基苯基) - 芳基 - 甲酮。 此外,本发明涉及含有(3-乙基-4-硝基苯基) - 芳基 - 甲酮的化合物,其特征在于任选取代的芳基是任选取代的稠合芳族化合物。

    Process for regenerating 2-chlorotrityl resins
    10.
    发明授权
    Process for regenerating 2-chlorotrityl resins 失效
    再生2-氯三苯甲基树脂的方法

    公开(公告)号:US07351771B2

    公开(公告)日:2008-04-01

    申请号:US10740207

    申请日:2003-12-18

    IPC分类号: C08F8/20

    CPC分类号: C08F8/20

    摘要: The present invention relates to a recycling process for the preparation of solid phase bonded 2-chlorotrityl chloride (2-CTC resin) useful for solid phase peptide synthesis, wherein active chloride CTC resin is regenerated by reacting the spent resin with a chlorinating agent in organic solvent.

    摘要翻译: 本发明涉及一种制备用于固相肽合成的固相键合的2-氯三苯甲基氯(2-CTC树脂)的再循环方法,其中活性氯化物CTC树脂通过使废树脂与有机氯化剂反应而再生 溶剂。