Reduction of Sulfur Dioxide to Sulfur Monoxide by Ferrous Porphyrin**,Angewandte Chemie International Edition

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Reduction of Sulfur Dioxide to Sulfur Monoxide by Ferrous Porphyrin**
Angewandte Chemie International Edition ( IF 16.1 ) Pub Date : 2023-01-01 , DOI: 10.1002/anie.202215235
Aishik Bhattacharya ₁ , Arnab Kumar Nath ₁ , Arnab Ghatak ₁ , Abhijit Nayek ₁ , Souvik Dinda ₁ , Rajat Saha ₁ , Somdatta Ghosh Dey ₁ , Abhishek Dey ₁

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SO₂ could be reduced to SO by an iron porphyrin via a [Fe^III−SO]⁺ intermediate. This intermediate, which is proposed to be involved in sulfite reductase enzymes, has not been observed outside the protein matrix previously and was characterized by EPR, Mossbauer and resonance Raman spectroscopy. The SO formed could be transferred to an organic diene through a cycloaddition reaction.

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