61666-79-3Relevant academic research and scientific papers
Iron(III) triflimide as a catalytic substitute for gold(I) in hydroaddition reactions to unsaturated carbon-carbon bonds
Cabrero-Antonino, Jose R.,Leyva-Perez, Antonio,Corma, Avelino
supporting information, p. 8627 - 8633 (2013/07/26)
In this work it is shown that iron(III) and gold(I) triflimide efficiently catalyze the hydroaddition of a wide array of nucleophiles including water, alcohols, thiols, amines, alkynes, and alkenes to multiple C-C bonds. The study of the catalytic activity and selectivity of iron(III), gold(I), and Bronsted triflimides has unveiled that iron(III) triflimide [Fe(NTf 2)3] is a robust catalyst under heating conditions, whereas gold(I) triflimide, even stabilized by PPh3, readily decomposes at 80 °C and releases triflimidic acid (HNTf2) that can catalyze the corresponding reaction, as shown by in situ 19F, 15N, and 31P NMR spectroscopy. The results presented here demonstrate that each of the two catalyst types has weaknesses and strengths and complement each other. Iron(III) triflimide can act as a substitute of gold(I) triflimide as a catalyst for hydroaddition reactions to unsaturated carbon-carbon bonds. Lewis and Bronsted catalysis: It is shown that iron(III) catalyses as efficiently as gold(I) the hydroaddition of a wide array of nucleophiles, including water, alcohols, thiols, amines, alkynes, and alkenes, to multiple C-C bonds (see scheme). Copyright
Oxidations with Lead Tetraacetate. IV. Oxidations of 1,3-Benzodithioles
Aromdee, Chantana,Cole, Edward R.,Crank, George
, p. 2499 - 2509 (2007/10/02)
Oxidations of 2,2-dialkyl and spiro with lead tetraacetate gave mainly sulfoxides and disulfoxides.The stereochemistry of these products was elucidated by n.m.r. spectroscopy.Oxidation of 2-methyl-2-aryl derivatives gave sulfoxides as minor products; here the main products were derived from attack on the methyl group forming acetoxy, diacetoxy, formyl and carboxylic acid derivatives and ring cleavage products. 2,2-Diaryl derivatives also formed small amounts of sulfoxides but ring cleavage products were predominant.Monosubstituted benzodithioles were very reactive and produced a variety of oxidation products, mostly unidentified.
