Pondaven-Raphalen, A.; Sturtz, G., Phosphorus and Sulfur and the Related Elements, 1987, vol. 29, p. 329 - 340
作者:Pondaven-Raphalen, A.、Sturtz, G.
DOI:——
日期:——
Silica-supported HClO<sub>4</sub> promotes catalytic solvent- and metal-free O–H insertion reactions with diazo compounds
作者:Rafael Douglas C. Gallo、Antonio C. B. Burtoloso
DOI:10.1039/c8gc02574f
日期:——
employing rhodium acetate dimer, this method uses eco-friendly silica-supported HClO4 as the catalyst. Only 0.3 mol% of this Brønsted 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