The first crystallographically characterised ruthenium(vi) alkylimido porphyrin competent for aerobic epoxidation and hydrogen atom abstraction

Ka-Pan Shing; Qingyun Wan; Xiao-Yong Chang; Chi-Ming Che

doi:10.1039/c9cc09972g

The first crystallographically characterised ruthenium(vi) alkylimido porphyrin competent for aerobic epoxidation and hydrogen atom abstraction

Chem Commun (Camb). 2020 Apr 25;56(32):4428-4431. doi: 10.1039/c9cc09972g. Epub 2020 Mar 20.

Authors

Ka-Pan Shing¹, Qingyun Wan, Xiao-Yong Chang, Chi-Ming Che

Affiliation

¹ Department of Chemistry and State Key Laboratory of Synthetic Chemistry, The University of Hong Kong, Pokfulam Road, Hong Kong, China. cmche@hku.hk.

PMID: 32195498
DOI: 10.1039/c9cc09972g

Abstract

The syntheses of [Ru^VI(Por)(NAd)(O)] and [Ru^VI(2,6-F₂-TPP)(NAd)₂] have been described. [Ru^VI(2,6-F₂-TPP)(NAd)(O)] capable of catalysing aerobic epoxidation of alkenes has been characterised by X-ray crystallography with Ru[double bond, length as m-dash]NAd and Ru[double bond, length as m-dash]O bond distances being 1.778(5) Å and 1.760(4) Å (∠O-Ru-NAd: 174.37(19)°), respectively. Its first reduction potential is 740 mV cathodically shifted from that of [Ru^VI(2,6-F₂-TPP)(O)₂].