In organic chemistry, atoms other than carbon and hydrogen are generally referred to as heteroatoms. The most common heteroatoms are nitrogen, oxygen and sulfur. Now I present to you an article called Hypervalent Iodine(III) Catalyzed Balz-Schiemann Fluorination under Mild Conditions, published in 2018, which mentions a compound: 455-70-9, mainly applied to arenediazonium tetrafluoroborate Balz Schiemann fluorination hypervalent iodine catalyst; fluoride aryl preparation; Balz-Schiemann reaction; aryl fluorides; diazonium salts; fluorination; iodine, Category: dioxole.
An unprecedented hypervalent iodine(III)-catalyzed Balz-Schiemann reaction was described. In the presence of a hypervalent iodine compound, the fluorination reaction proceeded under mild conditions (25-60 °C), and featured a wide substrate scope and good functional-group compatibility.
Here is just a brief introduction to this compound(455-70-9)Category: dioxole, more information about the compound(Methyl 5-fluoro-3-pyridinecarboxylate) is in the article, you can click the link below.
Reference:
1,3-Benzodioxole – Wikipedia,
Dioxole | C3H4O2 – PubChem