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专利名称:Preparation of Anilineboronic acids and
derivatives thereof
发明人:Stefan Scherer,Andreas Meudt,Bernd
Lehnemann,Alexei Kalinin,Victor Snieckus
申请号:US108463申请日:20040514
公开号:US20050038287A1公开日:20050217
摘要: A process for preparing anilineboronic acid derivatives of the formula I, byconverting an aniline (II) to a diprotected aniline (III) by introducing two protectinggroups PG, metalating (III) and simultaneously or subsequently reacting with a boronicester B(OR)(IV) to a protected anilineboronic ester of the formula (V), which is converted,by detaching the protecting groups PG, to the anilineboronic esters of the formula (I)Step 1: Protection of the Aniline by Dibenzylation Step 2: Metalation of the ProtectedAniline, Conversion to Boronic Acid Derivative Step 3: Detachment of the ProtectingGroup where
申请人:Stefan Scherer,Andreas Meudt,Bernd Lehnemann,Alexei Kalinin,Victor Snieckus
地址:Buettelborn DE,Hofhetn DE,Frankfurt DE,Springfield MO US,Kingston CA
国籍:DE,DE,DE,US,CA
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