An article Oxidative Aromatization of 3,4-Dihydroquinolin-2(1H)-ones to Quinolin-2(1H)-ones Using Transition-Metal-Activated Persulfate Salts WOS:000474796800033 published article about HANTZSCH 1,4-DIHYDROPYRIDINES; DERIVATIVES; IRON; MILD in [Chen, Weiming; Aisa, Haji A.] 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; [Chen, Weiming; Abame, Melkamu Alemu] Univ Chinese Acad Sci, 19A Yuquan Rd, Beijing 100049, Peoples R China; [Sun, Changliang; Hu, Tianwen; Zhu, Fuqiang; Shi, Jing] Topharman Shanghai Co Ltd, Bldg 1,388 Jialilue Rd,Zhangjiang Hitech Pk, Shanghai 201209, Peoples R China; [Zhang, Yan; Jiang, Xiangrui; Abame, Melkamu Alemu; Yang, Feipu; Suo, Jin; Shen, Jingshan] Chinese Acad Sci, Shanghai Inst Mat Med, CAS Key Lab Receptor Res, 555 Zuchongzhi Rd, Shanghai 201203, Peoples R China in 2019, Cited 57. COA of Formula: C14H10O3. The Name is Benzoic anhydride. Through research, I have a further understanding and discovery of 93-97-0
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.
COA of Formula: C14H10O3. 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