钯纳米颗粒催化的异吲哚酮及其相关n -杂环化合物的级联反应。

R Grigg, V Sridharan
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引用次数: 0

摘要

具有sp2 C-Pd(II)或sp3 C-Pd(II)键和简单Pd(II)盐的不含磷化氢的环钯化n杂环是Pd(0)纳米粒子的前驱体,其初始形态取决于前驱体的性质。聚乙烯吡咯烷酮(pvp)的加入显著提高了催化剂的使用寿命。纳米颗粒的生成可以在一氧化碳存在的环境温度下通过类似于水气转换反应的过程来实现。烯还降低了纳米颗粒生成所需的温度。采用一种或两种底物的三组分催化级联反应提供了多种5元和6元n -杂环化合物,包括异吲哚酮、n -氨基异吲哚酮、邻苯二酮、二氢异喹啉和异喹诺酮。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Isoindolones and related N-heterocycles via palladium nanoparticle-catalyzed 3-component cascade reactions.

Non-phosphine-containing cyclopalladated N-heterocycles possessing either sp2 C-Pd(II) or sp3 C-Pd(II) bonds and simple Pd(II) salts are precursors of Pd(0) nanoparticles whose initial morphology is dependent on the nature of the precursor. Addition of polyvinylpyrrolidone (pvp) dramatically increases catalyst lifetime. Nanoparticle generation can be achieved at ambient temperature in the presence of carbon monoxide by a process akin to the water-gas shift reaction. Allene also lowers the temperature required for nanoparticle generation. 3-Component catalytic cascades employing one or both of these substrates provide access to a variety of 5- and 6-membered N-heterocycles including isoindolones, N-aminoisoindolones, phthalazones, dihydroisoquinolines, and isoquinolones.

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