Palladium-Catalyzed Oxidative Olefination of Phenols Bearing Removable Directing Groups under Molecular Oxygen was written by Liu, Bin;Jiang, Huai-Zhi;Shi, Bing-Feng. And the article was included in Journal of Organic Chemistry in 2014.SDS of cas: 4783-68-0 This article mentions the following:
An efficient Pd(II)-catalyzed oxidative olefination of phenols bearing removable directing groups with mol. oxygen as the sole oxidant has been developed. E.g., in presence of Pd(OAc)2 under atm. O2, oxidative olefination of 2-phenoxypyridine with Et acrylate gave 73% (E)-I and (E,E)-II (13.6:1). This reaction protocol provides an efficient and robust synthetic tool for the synthesis of o-alkenyl phenols under mild conditions. In the experiment, the researchers used many compounds, for example, 2-Phenoxypyridine (cas: 4783-68-0SDS of cas: 4783-68-0).
2-Phenoxypyridine (cas: 4783-68-0) belongs to pyridine derivatives. Pyridine has a conjugated system of six π electrons that are delocalized over the ring. The molecule is planar and, thus, follows the Hückel criteria for aromatic systems. Reduced pyridines, namely tetrahydropyridines, dihydropyridines and piperidines, are found in numerous natural and synthetic compounds. The synthesis and reactivity of these compounds have often been driven by the fact many of these compounds have interesting and unique pharmacological properties. SDS of cas: 4783-68-0