Synthesis of a Bench-Stable Manganese(III) Chloride Compound: Coordination Chemistry and Alkene Dichlorination
Synthesis of a Bench-Stable Manganese(III) Chloride Compound: Coordination Chemistry and Alkene Dichlorination
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实验室稳定的氯化锰 (III) 化合物的合成：配位化学和烯烃二氯化
DOI：
10.1021/jacs.2c08509
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发表时间：
2022
影响因子：
15
通讯作者：
Lacy, David C.
中科院分区：
文献类型：
--
作者：
Saju, Ananya;Griffiths, Justin R.;MacMillan, Samantha N.;Lacy, David C.
配合物 [MnCl3(OPPh3)2] (1) 是一种实验室稳定且易于制备的 MnCl3 来源。它是通过用 Ph3PO 处理乙腈溶剂化的 MnCl3(2) 并收集所得蓝色沉淀来制备的。1 凭借不稳定的 Ph3PO 配体可用于配位反应，这通过 {Tpm*}MnCl3(3) 的合成得到了证明。此外，依赖于困难或繁琐的反应性 MnCl3 溶液制备的合成方法可以使用 1 来完成。这是通过在多种溶剂中、开放于空气中且具有良好底物范围的烯烃二氯化反应来证明的。光加速卤化和自由基敏感实验支持涉及逐步 Cl 原子转移的自由基机制。
The complex [MnCl3(OPPh3)2] (1) is a bench-stable and easily prepared source of MnCl3. It is prepared by treating acetonitrile solvated MnCl3(2) with Ph3PO and collecting the resulting blue precipitate.1is useful in coordination reactions by virtue of the labile Ph3PO ligands, and this is demonstrated through the synthesis of {Tpm*}MnCl3(3). In addition, methodologies in synthesis that rely on difficult or cumbersome to prepare solutions of reactive MnCl3can be accomplished using1instead. This is demonstrated through alkene dichlorinations in a wide range of solvents, open to air, and with good substrate scope. Light-accelerated halogenation and radical sensitive experiments support a radical mechanism involving stepwise Cl-atom transfer(s) from1.