In 2022,Zhang, Xin-Ke; Miao, Xiao-Yu; Zhou, Yu; Wang, Yu-Mei; Song, Ying-Chun; Liu, Hang; Xiong, Yi-Lu; Li, Ling-Yu; Wu, An-Xin; Zhu, Yan-Ping published an article in Organic & Biomolecular Chemistry. The title of the article was 《Iodine-catalyzed oxidative annulation: facile synthesis of pyrazolooxepinopyrazolones via methyl azaarene sp3 C-H functionalization》.Recommanded Product: 4949-44-4 The author mentioned the following in the article:
An iodine-catalyzed Me azaarene sp3 C-H functionalization has been developed for the synthesis of a seven-membered O-heterocyclic architecture containing three different heterocyclic aromatic hydrocarbons. This method can be applied to a wide range of substituted Me azaarenes and diverse 2,4-dihydro-3H-pyrazol-3-ones, and brings about the efficient preparation of 2,9-dihydrooxepino[2,3-c:6,5-c’]dipyrazol-3(7H)-ones in high yields with the merits of low catalyst loading, good functional group tolerance and metal-free conditions.Ethyl 3-oxopentanoate(cas: 4949-44-4Recommanded Product: 4949-44-4) was used in this study.
Ethyl 3-oxopentanoate(cas: 4949-44-4) belongs to ketone compounds. Ketones are highly reactive, although less so than aldehydes, to which they are closely related. Much of their chemical activity results from the nature of the carbonyl group. Ketones readily undergo a wide variety of chemical reactions.Recommanded Product: 4949-44-4
Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics