Spontaneous formation of reactive oxometal porphyrins by oxygen atom transfer from dioxirane
Abstract
Oxygen atom transfer to manganese(II) tetraphenylporphyrin (tpp) and iron(II) tetramesitylporphyrin (tmp) is readily effected at < –10 °C with dimethyldioxirane in anhydrous acetone to afford the labile oxometal species OMnIV(tpp) and O
FeIV(tmp) in quantitative yields.