Platinum-Catalyzed Desaturation of Lactams, Ketones, and Lactones was written by Chen, Ming;Rago, Alexander J.;Dong, Guangbin. And the article was included in Angewandte Chemie, International Edition in 2018.COA of Formula: C9H7IO2 This article mentions the following:
The development of a general platinum-catalyzed desaturation of N-protected lactams, ketones, and lactones to their conjugated α,β-unsaturated counterparts is reported. The reaction operates under mildly acidic conditions at room temperature or 50 °C. It is scalable and tolerates a wide range of functional groups. The complementary reactivity to the palladium-catalyzed desaturation is demonstrated in the efficient conversion of iodide, bromide, and sulfur-containing substrates. In the experiment, the researchers used many compounds, for example, 6-Iodochroman-2-one (cas: 128651-99-0COA of Formula: C9H7IO2).
6-Iodochroman-2-one (cas: 128651-99-0) belongs to iodide derivatives. In general, organic iodides are light-sensitive and turn yellow during storage, owing to the formation of iodine. The C–I bond is the weakest of the carbon–halogen bonds. These bond strengths correlate with the electronegativity of the halogen, decreasing in the order F > Cl > Br > I. This periodic order also follows the atomic radius of halogens and the length of the carbon-halogen bond.COA of Formula: C9H7IO2
Referemce:
Iodide – Wikipedia,
Iodide – an overview | ScienceDirect Topics – ScienceDirect.com