Aerobic oxidation of alkenes mediated by porphyrin rhodium(iii) complexes in water
作者:Jiadi Zhang、Shan Li、Xuefeng Fu、Bradford B. Wayland
DOI:10.1039/b904414k
日期:——
Selective oxidation of alkenes in water to ketones using molecular oxygen as the oxidant is mediated by rhodiumporphyrincomplexes through observed beta-hydroxy alkyl complexes.
Isotope-Sensitive Degenerate [1,3]-Hydrogen Migration versus Competitive Enol-Keto Tautomerization
作者:Xinhao Zhang、Waltraud Zummack、Detlef Schröder、Frank A. Weinhold、Helmut Schwarz
DOI:10.1002/chem.200902176
日期:2009.11.9
acetone generated from its enol. Based on these findings as well as on highly accurate electronic structure calculations, a novel pathway (see picture) for a degenerate, isotope‐sensitive [1,3]‐hydrogenmigration has been uncovered.
NMR-monitoring of H/D exchange reaction of ketones in solutions of imidazolium ionic liquids
作者:Astghik A. Shahkhatuni、Aleksan G. Shahkhatuni、Valentine P. Ananikov、Arpine S. Harutyunyan
DOI:10.1016/j.molliq.2022.119746
日期:2022.9
NMR spectroscopy was used to study hydrogen–deuterium exchange in CH3, CH2 and CH moieties of ketones dissolved in mixtures of solvents containing exchangeable deuteriums and imidazoliumionicliquids (IL) acting as catalysts. Factors affecting the efficiency of the exchange, as well as the role of the deuterated solvent, temperature and concentration, were investigated. Depending on the sample composition
Heptakis-6-amino-6-deoxy-β-cyclodextrin as a catalyst for H/D exchange
作者:Wolfgang H. Binder、Fredric M. Menger
DOI:10.1016/s0040-4039(96)02103-x
日期:1996.12
Heptakis-6-amino-6-deoxy-beta-cyclodextrin 2 at pD = 6.50, 20 degrees C catalyzes CH/CD exchange in malonic acid, pyruvic acid and acetaldehyde. Accelerations as large as 3800 were observed. Copyright (C) 1996 Elsevier Science Ltd
Kursanow; Setkina, Doklady Akademii Nauk SSSR, 1954, vol. 94, p. 69,71