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首页> 外文期刊>Dalton transactions: An international journal of inorganic chemistry >Mild catalytic deoxygenation of amides promoted by thorium metallocene
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Mild catalytic deoxygenation of amides promoted by thorium metallocene

机译:富含钍均促进酰胺的温和催化脱氧

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摘要

The organoactinide-catalyzed (Cp*2ThMe2) hydroborated reduction of a wide range of tertiary, secondary, and primary amides to the corresponding amines/amine-borane adducts via deoxygenation of the amides is reported herein. The catalytic reactions proceed under mild conditions with low catalyst loading and pinacolborane (HBpin) concentration in a selective fashion. Cp*2ThMe2 is capable of efficiently catalysing the gram-scale reaction without a drop in efficiency. The amine-borane adducts are successfully converted into free amine products in high conversions, which increases the usefulness of this catalytic system. A plausible mechanism is proposed based on detailed kinetics, stoichiometric, and deuterium labeling studies.
机译:本文报道了通过酰胺的诸三氧化酰胺的相应胺/胺 - 硼烷加氢的有机酰胺催化剂(CP * 2THME2)的宽范围,次级和初级酰胺的较宽的叔酰胺和伯酰胺。 催化反应在温和条件下进行,以低催化剂负载和泛硼硼烷(HBPIN)浓度以选择性方式。 CP * 2THME2能够有效地催化革兰级反应而不会降低效率。 胺 - 硼烷加合物成功转化为在高转化阶段的游离胺产物中,这增加了该催化系统的有用性。 基于详细的动力学,化学计量和氘标记研究提出了一种合理的机制。

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