I found the field of Chemistry very interesting. Saw the article Oxidative Aromatization of 3,4-Dihydroquinolin-2(1H)-ones to Quinolin-2(1H)-ones Using Transition-Metal-Activated Persulfate Salts published in 2019. Recommanded Product: Benzoic anhydride, Reprint Addresses Aisa, HA (corresponding author), Chinese Acad Sci, Xinjiang Tech Inst Phys & Chem, Key Lab Plant Resources & Chem Arid Reg, South Beijing Rd 40-1, Urumqi 830011, Xinjiang, Peoples R China.; Shen, JS (corresponding author), Chinese Acad Sci, Shanghai Inst Mat Med, CAS Key Lab Receptor Res, 555 Zuchongzhi Rd, Shanghai 201203, Peoples R China.. The CAS is 93-97-0. Through research, I have a further understanding and discovery of Benzoic anhydride
Inorganic persulfate salts were identified as efficient reagents for the oxidative aromatization of 3,4-dihydroquinolin-2(1H)-ones through the activation of readily available transition metals, such as iron and copper. The feasible protocol conforming to the requirement of green chemistry was utilized in the preparation of the key intermediate (7-(4-chlorobutoxy)quinolin-2(1H)-one 2) of brexpiprazole in 80% isolated yield on a 100 g scale, and different quinolin-2(1H)-one derivatives with various functional groups were demonstrated in 52-89% yields.
Recommanded Product: Benzoic anhydride. About Benzoic anhydride, If you have any questions, you can contact Chen, WM; Sun, CL; Zhang, Y; Hu, TW; Zhu, FQ; Jiang, XR; Abame, MA; Yang, FP; Suo, J; Shi, J; Shen, JS; Aisa, HA or concate me.
Reference:
Isothiazole – Wikipedia,
,Isothiazole – ScienceDirect.com