67274-77-5Relevant academic research and scientific papers
Metallaphotoredox-Mediated Csp2-H Hydroxylation of Arenes under Aerobic Conditions
Shah, Sk. Sheriff,Paul, Amrita,Bera, Manoranjan,Venkatesh, Yarra,Singh, N. D. Pradeep
, p. 5533 - 5536 (2018/09/21)
The direct hydroxylation of 2-arylpyridines and 2-arylbenzothiazoles via the merger of organic photoredox and metal catalysis is reported where 4CzIPN is used as the visible-light photocatalyst and Pd(OAc)2 as the metal catalyst. This method has been employed to synthesize organic molecules exhibiting excited-state intramolecular proton transfer properties for generating tunable luminescence responses.
Design and synthesis of ruthenium bipyridine catalyst: An approach towards low-cost hydroxylation of arenes and heteroarenes
Shome, Sanchari,Singh, Surya Prakash
supporting information, p. 3743 - 3746 (2017/09/01)
Two new ruthenium bipyridine complexes were designed and synthesized for intermolecular Csp2-H hydroxylation. An environmentally begin and inexpensive oxidant was employed as an oxygen source thereby enhancing its applicability and resulting in the remarkable increase of yield. In the catalytic process a ruthenium (IV) cationic complex is formed which enables the regioselective C–O bonds formation and also proves to be tolerant to a broad substrate scope. Activation of C–H bonds adjacent to removable and non-removable directing groups have been explored efficiently.
Aerobic Direct C(sp2)-H Hydroxylation of 2-Arylpyridines by Palladium Catalysis Induced with Aldehyde Auto-Oxidation
Das, Prasenjit,Saha, Debajyoti,Saha, Dibyajyoti,Guin, Joyram
, p. 6050 - 6054 (2016/09/09)
Herein we present a Pd-catalyzed direct C-H hydroxylation of 2-arylpyridines using molecular oxygen (O2) as the sole oxidant. The key aspects of the method include: (a) the activation of molecular oxygen with a nontoxic and inexpensive aldehyde
Palladium-catalyzed aryl C(sp2)-H bond hydroxylation of 2-arylpyridine using TBHP as oxidant
Dong, Jiawei,Liu, Ping,Sun, Peipei
, p. 2925 - 2929 (2015/03/18)
An efficient synthesis of phenols via Pd-catalyzed, pyridyl-directed homogeneous hydroxylation of the aryl C-H bond was developed, in which tert-butyl hydroperoxide was used as the sole oxidant. The method had a broad group tolerance and was available for
PdCl2 and N-hydroxyphthalimide co-catalyzed c sp 2 -H hydroxylation by dioxygen activation
Yan, Yuepeng,Feng, Peng,Zheng, Qing-Zhong,Liang, Yu-Feng,Lu, Jing-Fen,Cui, Yuxin,Jiao, Ning
supporting information, p. 5827 - 5831 (2013/06/27)
Rad transition: The combination of transition-metal-catalyzed C-H activation and a NHPI-initiated radical process is essential for the title transformation. The neutral conditions and the ideal oxidant, molecular oxygen, make this hydroxylation environmen
Regioselectivity in palladium-catalyzed C-H activation/oxygenation reactions
Kalyani, Dipannita,Sanford, Melanie S.
, p. 4149 - 4152 (2007/10/03)
(Chemical Equation Presented) Palladium-catalyzed directed C-H activation/oxygenation reactions have been explored in a series of meta-substituted aryl pyridine and aryl amide derivatives. These transformations tolerate a diverse array of electron-donatin
