Highly efficient and time economical purification of olefin metathesis products from metal residues using an isocyanide scavenger,Green Chemistry

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Highly efficient and time economical purification of olefin metathesis products from metal residues using an isocyanide scavenger
Green Chemistry ( IF 9.3 ) Pub Date : 2018-02-22 00:00:00 , DOI: 10.1039/c7gc03324a
Grzegorz Szczepaniak _{1,

2,

3,

4} , Anna Ruszczyńska _{1,

2,

3,

4} , Krzysztof Kosiński _{1,

2,

3,

4} , Ewa Bulska _{1,

2,

3,

4} , Karol Grela _{1,

2,

3,

4}

Affiliation

A sustainable protocol of olefin metathesis in non-degassed, undistilled ethyl acetate under air with commercially available self-scavenging ruthenium catalysts is described. Furthermore, a time economical, cost-effective and scalable method of removal of ruthenium residues is presented. Treatment of post-reaction mixtures with an isocyanide scavenger and then with acid followed by a simple filtration is shown to yield OM products with ruthenium contamination below 5 ppm even in highly challenging cases. Finally, a telescope RCM/Suzuki–Miyaura sequence with a rapid and efficient purification protocol for simultaneous removal of Ru and Pd residues from solution is described.

中文翻译：

使用异氰酸酯清除剂从金属残渣中高效，经济地纯化烯烃复分解产物

描述了一种在空气中非脱气，未蒸馏的乙酸乙酯中使用可商购的自清除钌催化剂的烯烃复分解的可持续方案。此外，提出了一种省时，经济，可扩展的去除钌残留物的方法。结果表明，即使在极富挑战性的情况下，用异氰酸酯清除剂处理后反应混合物，然后用酸处理，然后进行简单过滤，即可制得钌污染低于5 ppm的OM产品。最后，描述了具有快速有效纯化方案的望远镜RCM / Suzuki-Miyaura序列，用于同时从溶液中去除Ru和Pd残留物。

更新日期：2018-03-20

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