μ-Oxo-bis[(octacosafluoro--tetraphenylporphyrinato)iron(iii)] - Synthesis, Crystal Structure, and Catalytic Activity in Oxidation Reactions

Overview

Journal Chem Sci

Publisher Royal Society of Chemistry

Specialty Chemistry

Date 2023 Jan 23

PMID 36687339

Authors

Tristan Schuh

Olga Kataeva

Hans-Joachim Knolker

Affiliations

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Abstract

We describe the synthesis and X-ray crystal structure of μoxo-bis[(octacosafluoro--tetraphenylporphyrinato)iron(iii)] [(FeTPPF)O]. This novel iron complex is an efficient catalyst for oxidative biaryl coupling reactions of diarylamines and carbazoles. The asymmetric oxidative coupling in the presence of an axially chiral biaryl phosphoric acid as co-catalyst provides the 2,2'-bis(arylamino)-1,1'-biaryl in 96% . The Wacker-type oxidation of alkenes to the corresponding ketones with (FeTPPF)O as catalyst in the presence of phenylsilane proceeds at room temperature with air as the terminal oxidant. For internal and aliphatic alkenes increased ketone/alcohol product ratios were obtained.

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