[EN] METHOD FOR PREPARATION OF ALKYLATED OR FLUORO, CHLORO AND FLUOROCHLORO ALKYLATED COMPOUNDS BY HETEROGENEOUS CATALYSIS [FR] PROCÉDÉ DE PRÉPARATION DE COMPOSÉS ALKYLÉS OU FLUORO, CHLORO ET FLUOROCHLORO ALKYLÉS PAR CATALYSE HÉTÉROGÈNE
This paper report a convenient methodology for perfluoroalkylation including trifluoromethylation of (hetero)arenes with perfluoroalkyl bromides using a specific cobalt-based nanocatalyst.
compounds are gaining increasing interest for life science applications. The replacement of hydrogen in arenes or heteroarenes by a perfluoroalkyl group has a profound influence on the physical and biological properties of such building blocks. Here, an operationally simple protocol for the directCH perfluoroalkylation of (hetero)arenes with RfI or RfBr has been developed, using a robust supported platinum
氟化有机化合物在生命科学应用中越来越受到关注。芳烃或杂芳烃中的氢被全氟烷基取代对这种结构单元的物理和生物学特性产生深远的影响。在此,使用R f I或R f对(杂)芳烃进行直接CH全氟烷基化的操作简单协议使用坚固的负载型铂催化剂已开发出Br。起始原料的可用性,优异的底物耐受性和催化剂的可重复使用性使该方法对合成各种全氟烷基取代的芳族化合物具有吸引力。初步的机理研究表明,自由基的形成对反应系统至关重要。
Kamigata, Nobumasa; Ohtsuka, Takeshi; Fukushima, Takamasa, Journal of the Chemical Society. Perkin transactions I, 1994, # 10, p. 1339 - 1346
Kamigata Nobumasa, Ohtsuka Takeshi, Fukushima Takamasa, Yoshida Masato, S+, J. Chem. Soc. Perkin Trans, (1994) N 10, S 1339-1346
作者:Kamigata Nobumasa, Ohtsuka Takeshi, Fukushima Takamasa, Yoshida Masato, S+
DOI:——
日期:——
[EN] METHOD FOR PREPARATION OF ALKYLATED OR FLUORO, CHLORO AND FLUOROCHLORO ALKYLATED COMPOUNDS BY HETEROGENEOUS CATALYSIS<br/>[FR] PROCÉDÉ DE PRÉPARATION DE COMPOSÉS ALKYLÉS OU FLUORO, CHLORO ET FLUOROCHLORO ALKYLÉS PAR CATALYSE HÉTÉROGÈNE
申请人:LONZA AG
公开号:WO2015185677A1
公开(公告)日:2015-12-10
The invention discloses a method for preparation of alkylated or fluoro, chloro and fluorochloro alkylated compounds by a heterogeneous Pt/C-catalyzed alkylation or fluoro, chloro and fluorochloro alkylation with alkyl halides or with fluoro, chloro and fluorochloro alkyl halides in the presence of Cs2C03 or CsHC03.