79309-61-8Relevant articles and documents
Silica-supported HClO4 promotes catalytic solvent- and metal-free O-H insertion reactions with diazo compounds
Gallo, Rafael Douglas C.,Burtoloso, Antonio C. B.
, p. 4547 - 4556 (2018/10/17)
Solvent-free O-H insertion reactions in the presence of diazo carbonyl compounds were carried-out in very mild conditions. Unlike the traditional metal-catalysed version, employing rhodium acetate dimer, this method uses eco-friendly silica-supported HClO4 as the catalyst. Only 0.3 mol% of this Br?nsted acid catalyst, that can also be recycled several times, is necessary to guarantee very good yields (up to 97%) in the O-H insertion reactions. Reaction set-up is simple and permitted the preparation of forty-three α-hydroxy and α-alkoxy esters/ketones in just 1 h and at room temperature.
Hypervalent Iodine Oxidation of Aryl Methyl Ketones: A Convenient Route to Methyl α-Methoxyarylacetates
Singh, Om V.
, p. 3055 - 3058 (2007/10/02)
Hypervalent iodine oxidation of aryl methyl ketones using two equivalents of iodosobenzene diacetate leads to 1,2-aryl migration followed by solvohyperiodination to yield the corresponding methyl α-methoxyarylacetates.