A highly effective and operationally simple method for the deuteration of phenols using NaOH as a catalyst and D2O as the deuterium source is presented. A high regioselectivity for the ortho and/or para hydrogens relative to the oxygen atom was achieved, as well as a high degree of deuterium incorporation. The method also has a high functional-group tolerance, and allowed the deuteration of complex
EPR and ENDOR investigations of dynamic processes in sterically overcrowded phenoxyl-type galvinoxyl radicals
作者:J. Von Gersdorff、B. Kirste、D. Niethammer、W. Harrer、H. Kurreck
DOI:10.1002/mrc.1260260513
日期:1988.5
of tert‐butylgalvinol with perdeuteriated tert‐butyl groups and of 1,4‐bicyclo[2.2.2]octanebisgalvinol are described. The EPR and ENDOR spectra of the corresponding galvinoxyl monoradicals reveal selective line broadening due to dynamic processes associated with hindered internal rotation of the phenoxy rings. Deuteriation of the central tert‐butyl group in tert‐butylgalvinoxyl gives rise to a substantial
Neubert, Mary E., Molecular Crystals and Liquid Crystals (1969-1991), 1985, vol. 129, p. 327 - 374
作者:Neubert, Mary E.
DOI:——
日期:——
DEUTERIUM-ENRICHED LASOFOXIFENE
申请人:Czarnik Anthony W.
公开号:US20090062374A1
公开(公告)日:2009-03-05
The present application describes deuterium-enriched lasofoxifene, pharmaceutically acceptable salt forms thereof, and methods of treating using the same.
Ortho-Selective Hydrogen Isotope Exchange of Phenols and Benzyl Alcohols by Mesoionic Carbene-Iridium Catalyst
作者:Liang-Liang Zhao、Yixin Wu、Shiqing Huang、Zengyu Zhang、Wei Liu、Xiaoyu Yan
DOI:10.1021/acs.orglett.1c03685
日期:2021.12.3
Hydrogenisotopeexchange reactions of phenols and benzyl alcohols have been achieved by a mesoionic carbene-iridium catalyst with high ortho selectivity and high functional group tolerance. Control experiments indicated that acetate is crucial to realize the ortho selectivity, whereas density functional theory calculations supported an outer-sphere direction with hydrogen bonding between acetate and