In 2022,Yi, Bing; Wang, Qiang; Tan, Jian-Ping; Yi, Ziqi; Li, Daiguang; Kang, Shiyuan; Zhang, Wenhui; Tang, Huan; Xie, Yanjun published an article in Asian Journal of Organic Chemistry. The title of the article was 《Visible Light-mediated, Iodine-catalyzed Radical Cascade Sulfonylation/Cyclization for the Synthesis of Sulfone-containing Coumarin under Photocatalyst-free Conditions》.COA of Formula: C7H8O2 The author mentioned the following in the article:
A visible-light mediated, iodine catalyzed radical cascade sulfonylation/cyclization reaction by employing iodine as catalyst without addition of any of photocatalyst and oxidant was presented. A number of sulfone-containing coumarin derivatives with different substituent and functional groups were obtained in moderate to good yields. Besides, the practicality and utility of this protocol were demonstrated by the scale up synthesis. Furthermore, mechanistic investigations including control experiments and light on/off studies indicated that visible-light irradiation and iodine catalyst were the essential elements to fulfill the radical cascade sulfonylation/cyclization process. This protocol featured green, economical and efficient, and opens a new opportunity for accessing to structurally diverse sulfone-containing coumarin derivatives In the experimental materials used by the author, we found m-Methoxyphenol(cas: 150-19-6COA of Formula: C7H8O2)
m-Methoxyphenol(cas: 150-19-6) may be used in synthesis of:C(4) symmetric calix[4]resorcinarene, 2-nitroso-5-methoxyphenol, 6-methoxy-2(3H)-benzoxazoloneCOA of Formula: C7H8O2
Referemce:
Ether – Wikipedia,
Ether | (C2H5)2O – PubChem