Golden solution: A neutral solution of AuBr3, containing [AuBr2(OH)2]− in equilibrium with [AuBr3(OH)]− and [AuBr4]−, promotes the chemoselective hydrolysis of robust oximes into carbonyl compounds without racemization (see scheme). The food additive diacetyl acts as a NH2OH‐trapping agent, thus avoiding the formation of gold nanoparticles and allows the reaction to run catalytically.
Deprotection of Ketoximes Using Bismuth(III) Nitrate Pentahydrate
作者:Ram Mohan、Bryce Nattier、Kyle Eash
DOI:10.1055/s-2001-14568
日期:——
Ketoximes undergo facile deprotection in acetone-H20 (9: 1) in the presence 01' 0.5 equivalents of Bi(N03h·5H20. Bis muth(lII) nitrate is relatively non-toxic, insensitive to air and inex pensive. These features coupled with the use of a relatively non toxic solvent system make this method an attractive alternative to existing routes for deprotection of ketoximes.
[DE] NEUE PYRIMIDIN-DERIVATE UND IHRE VERWENDUNG ALS PPAR-ALPHA-MODULATOREN<br/>[EN] NOVEL PYRIMIDINE DERIVATIVES AND THEIR USE AS PPAR-ALPHA MODULATORS<br/>[FR] NOUVEAUX DERIVES DE PYRIMIDINE ET LEUR UTILISATION COMME MODULATEURS DE PPAR-ALPHA
申请人:BAYER HEALTHCARE AG
公开号:WO2006032384A1
公开(公告)日:2006-03-30
Die vorliegende Anmeldung betrifft neue Pyrimidin-Derivate der allgemeinen Formel (I), Verfahren zu ihrer Herstellung, ihre Verwendung zur Behandlung und/oder Prophylaxe von Krankheiten sowie ihre Verwendung zur Herstellung von Arzneimitteln zur Behandlung und/oder Prophylaxe von Krankheiten, vorzugsweise zur Behandlung und/oder Prävention kardiovaskulärer Erkrankungen, insbesondere von Dyslipidämien, Arteriosklerose, Herzinsuffizienz, Thrombose und des metabolischen Syndroms.
Synthesis of α-Deuterated Primary Amines <i>via</i> Reductive Deuteration of Oximes Using D<sub>2</sub>O as a Deuterium Source
作者:Lei Ning、Hengzhao Li、Zemin Lai、Michal Szostak、Xingyue Chen、Yanhong Dong、Shuhui Jin、Jie An
DOI:10.1021/acs.joc.0c02829
日期:2021.2.5
chemoselectivity and tolerates a variety of functional groups. The potential application of this new method was showcased in the synthesis of deuterated drugs, such as rimantadine-d4, the tebufenpyrad analogue, derivatives of nabumetone and pregnenolone, and a series of building blocks for the rapid and general assembly of deuterated drugs and pesticides.