Highly active ruthenium metathesis catalysts exhibiting unprecedented activity and Z-selectivity.

Highly active ruthenium metathesis catalysts exhibiting unprecedented activity and Z-selectivity.
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DOI:
10.1021/ja311916m
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发表时间:
2013-01-30
影响因子:
15
通讯作者:
Grubbs, Robert H.
Grubbs, Robert H.
中科院分区:
化学1区
文献类型:
--
作者:
Rosebrugh, Lauren E.;Herbert, Myles B.;Marx, Vanessa M.;Keitz, Benjamin K.;Grubbs, Robert H.

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报道了一种新型的钌基络合反应催化剂,该催化剂含有n -2,6-二异丙基苯基基团,在各种同二聚化和工业相关的反应中,对z -烯烃表现出近乎完美的选择性(>95%),以及无与伦比的高达7400吨的选择性。采用改进的方法,利用羧酸钠诱导这些螯合物的盐分解和C-H活化,合成了该衍生物和其他新的催化活性物质。这些钌基催化剂在末端烯烃的同二聚化反应中具有高度的z选择性。
A novel chelated ruthenium-based metathesis catalyst bearing an N-2,6-diisopropylphenyl group is reported and displays near-perfect selectivity for the Z-olefin (>95%), as well as unparalleled TONs of up to 7400, in a variety of homodimerization and industrially relevant metathesis reactions. This derivative and other new catalytically-active species were synthesized using an improved method employing sodium carboxylates to induce the salt metathesis and C-H activation of these chelated complexes. All of these new ruthenium-based catalysts are highly Z-selective in the homodimerization of terminal olefins.
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