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Yuma Morimoto Yuki Shimaoka Yuri Ishimizu Hiroshi Fujii Shinobu Itoh 《Angewandte Chemie (Weinheim an der Bergstrasse, Germany)》2019,131(32):10979-10982
Oxido‐iron(IV) porphyrin π‐radical cation species are involved in a variety of heme‐containing enzymes and have characteristic oxidation states consisting of a high‐valent iron center and a π‐conjugated macrocyclic ligand. However, the short lifetime of the complex has hampered detailed reactivity studies. Reported herein is a remarkable increase in the lifetime (80 s at 10 °C) of FeIV(TMP+.)(O)(Cl) ( 2 ; TMP=5,10,15,20‐tetramesitylporphyrin dianion), produced by the oxidation of FeIII(TMP)(Cl) ( 1 ) by ozone in α,α,α‐trifluorotoluene (TFT). The lifetime is 720 times longer compared to that of the currently most stable species reported to date. The increase in the lifetime improves the reaction efficiency of 2 toward inert alkane substrates, and allowed observation of the reaction of 2 with a primary C?H bond (BDEC‐H=ca. 100 kcal mol?1) directly. Activation parameters for cyclohexane hydroxylation were also obtained. 相似文献
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Prof. Dr. Klaus Banert Tom Pester 《Angewandte Chemie (Weinheim an der Bergstrasse, Germany)》2020,132(30):12413-12418
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Zhongfang Chen 《Angewandte Chemie (Weinheim an der Bergstrasse, Germany)》2004,116(36):4794-4796
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A.&#x;Stephen&#x;K. Hashmi 《Angewandte Chemie (Weinheim an der Bergstrasse, Germany)》2010,122(31):5360-5369
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