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Chemistry
分离游离卡本内斯、其混合二聚体和有机自由基
分离游离卡本内斯、其混合二聚体和有机自由基
JoVE Journal
Chemistry
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JoVE Journal Chemistry
Isolating Free Carbenes, their Mixed Dimers and Organic Radicals

分离游离卡本内斯、其混合二聚体和有机自由基

Full Text
11,650 Views
10:44 min
April 19, 2019

DOI: 10.3791/59389-v

Annette Grünwald1, Stephen J. Goodner1, Dominik Munz1

1Department of Chemistry and Pharmacy,Friedrich-Alexander-Universität Erlangen-Nürnberg

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Please note that some of the translations on this page are AI generated. Click here for the English version.

我们提出了分离稳定的杂环卡本的方案。利用滤器插管和施伦克技术, 研究了一种循环 (烷基) (氨基) 卡本 (caac) 和n-杂环卡本 (nhc) 的合成方法。此外, 我们还提出了合成相关的氧敏感, 富含电子的混合 "Wanzlick 二聚体" 和减少稳定的有机自由基。

该协议允许任何级别的学生进行空气敏感化合物的合成,例如,碳素,或他们的二丁石,或自由基使用施伦克线和坎努拉斯过滤。过滤器可以以最小的工作量隔离非常非常敏感的化合物,并且产品污染的风险非常低。重要的是要记住的是使用干燥和脱气溶剂,干玻璃器皿,并正确循环玻璃器皿时连接到施伦克线。

在导航工作流时,例如,Schlenk 技术或筛选器管的工作流时,可视化指南特别有用。首先,快速将一个热、烤箱干燥的 100 毫升施伦克烧瓶转移到充满二分之一素的手套箱中。称出碘盐 1prot 和 KHMDS。

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化学 第146期 化学 卡本斯 n-杂化环卡本 NHC 循环 (烷基) 卡本 CAAC 滤器插管 Schlenk 技术 空气敏感 Wanzlick 的平衡 有机自由 富含电子的烯烃

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