Lewis Acid Catalyzed Protective Opening of Epoxides with Pivaloyl Halides
作者:Tulam Vijaya Kumar、T. Vinay Bharadwaj、K. Ukkanti、Prathama S. Mainkar
DOI:10.14233/ajchem.2015.18053
日期:——
An efficient protocol of shorter reaction times for protective opening of epoxides (POE) with pivaloyl halides under solvent-free conditions in presence of Lewis acid catalysts has been developed.
Ketyl radical reactivity via atom transfer catalysis
作者:Lu Wang、Jeremy M. Lear、Sean M. Rafferty、Stacy C. Fosu、David A. Nagib
DOI:10.1126/science.aau1777
日期:2018.10.12
and reaction of ketyl radicals. The in situ conversion of aldehydes to α-acetoxy iodides lowers their reduction potential by more than 1 volt, allowing for milder access to the corresponding ketyl radicals and an oxidative termination event. Upon subjecting these iodides to a dimanganese decacarbonyl precatalyst and visible light irradiation, an atomtransferradicaladdition (ATRA) mechanism affords
Expected and unexpected photochemical reactions of acyl iodides
作者:M. G. Voronkov、N. N. Vlasova、A. V. Vlasov、L. I. Belousova、O. Yu. Grigor’eva、A. I. Albanov、G. F. Myachina、T. I. Vakul’skaya
DOI:10.1134/s1070428009110062
日期:2009.11
respectively. The most probable mechanism of their formation is the primaryphotochemical acylation of toluene in the aromatic ring followed by the photochemical reduction of the arising butyl 4-methylphenyl ketone in the case of the valeroyl iodide or the photochemical Norrish type I cleavage of isomeric 3- and 4-methylphenyl (tert-butyl) ketones in event of the pivaloyl iodide. In the photolysis of acetyl