Isolation, Characterization, and Reactivity of Fe8Me12(-): Kochi's S = 1/2 Species in Iron-Catalyzed Cross-Couplings with MeMgBr and Ferric Salts.
Isolation, Characterization, and Reactivity of Fe8Me12(-): Kochi's S = 1/2 Species in Iron-Catalyzed Cross-Couplings with MeMgBr and Ferric Salts.
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DOI:
10.1021/jacs.6b03760
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发表时间:
2016-06-22
影响因子:
15
通讯作者:
Neidig ML
中科院分区:
文献类型:
--
作者:
Muñoz Iii SB;Daifuku SL;Brennessel WW;Neidig ML
Iron-catalyzed cross-couplings with simple ferric salts have been known since the 1970s, pioneered by Kochi for cross-coupling using alkylmagnesium nucleophiles including MeMgBr. While Kochi observed the formation of a S = 1/2 iron species in reactions of simple ferric salts with MeMgBr proposed to be an iron(I) species, the identity of this species has remained undefined for nearly 40 years. Herein, we report the isolation and characterization of [MgCl(THF)5][Fe8Me12], which combined with EPR and MCD studies is shown to be consistent with Kochi’s S = 1/2 species. Reaction studies with β-bromostyrene demonstrate that this species alone displays minimal reactivity but, when combined with additional MeMgBr, leads to rapid and selective formation of cross-coupled product.
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影响因子:
15
作者:
Daifuku SL;Kneebone JL;Snyder BE;Neidig ML
通讯作者:
Neidig ML
DOI:
10.1039/c39930001251
发表时间:
1993-08-21
影响因子:
--
作者:
POHL, S;BARKLAGE, W;OPITZ, U
通讯作者:
OPITZ, U
影响因子:
15
作者:
KWAN, CL;KOCHI, JK
通讯作者:
KOCHI, JK
影响因子:
4
作者:
TAMURA, M;KOCHI, JK
通讯作者:
KOCHI, JK
DOI:
10.1002/anie.199308631
发表时间:
1993-06-01
期刊:
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION IN ENGLISH
影响因子:
--
作者:
POHL, S;OPITZ, U
通讯作者:
OPITZ, U