Wang, FH; Liu, ZY; Yang, S; Shi, L; Lin, DZ; Liu, HY; Yuan, GQ in [Wang, Feng-Hua; Liu, Zheng-Yan; Yang, Shuang; Liu, Hai-Yang; Yuan, Gao-Qing] South China Univ Technol, Key Lab Funct Mol Engn Guangdong Prov, Dept Chem, Guangzhou, Peoples R China; [Shi, Lei] Guangdong Univ Educ, Dept Chem, Guangzhou, Peoples R China; [Lin, Dong-Zi] Foshan Forth Peoples Hosp, Dept Lab Med, Foshan, Peoples R China published The construction of C(sp(3))-O bond via copper porphyrin catalyzed cross-dehydrogenative coupling reaction: Substituent and electronic effect of the catalysts in 2021, Cited 40. SDS of cas: 98-17-9. The Name is 3-(Trifluoromethyl)phenol. Through research, I have a further understanding and discovery of 98-17-9.
The push-pull electronic and steric effect of copper porphyrin catalysts on the cross-dehydrogenative coupling (CDC) reaction between the hydroxyl group of phenol substrates and C(sp(3))-H bond have been investigated. Results showed that copper porphyrin bearing electron-withdrawing, bulky steric hindrance or heteroatom of pyridyl groups could increase the catalytic activity in the reaction. 5,10,15,20-(tetrakis(4-pyridyl)porphyrin)copper (CuTPyP) was found the best among all tested catalysts. Phenol substrates bearing various functional groups afforded moderate to excellent yields (99%). Significantly, as compared to other tested copper porphyrins, CuTPyP not only exhibited remarkable higher activity but also could shorten the reaction time from 12 to 6 h.
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Reference:
Indole alkaloid derivatives as building blocks of natural products from Bacillus thuringiensis and Bacillus velezensis and their antibacterial and antifungal activity study,
,Preparation of Indole Containing Building Blocks for the Regiospecific Construction of Indole Appended Pyrazoles and Pyrroles