https://www.thevespiary.org/rhodium/Rhodium/chemistry/isomerizafrole.html (https://www.thevespiary.org/rhodium/Rhodium/chemistry/isomerizafrole.html)
https://www.thevespiary.org/rhodium/Rhodium/chemistry/peracid.html (https://www.thevespiary.org/rhodium/Rhodium/chemistry/peracid.html)