High-Throughput Screening of Reductive Amination Reactions Using Desorption Electrospray Ionization Mass Spectrometry
作者:David L. Logsdon、Yangjie Li、Tiago Jose Paschoal Sobreira、Christina R. Ferreira、David H. Thompson、R. Graham Cooks
DOI:10.1021/acs.oprd.0c00230
日期:2020.9.18
screening system that is capable of screening thousands of organicreactions in a single day. This system combines a liquid handling robot with desorption electrospray ionization (DESI) mass spectrometry (MS) for a rapid reaction mixture preparation, accelerated synthesis, and automated MS analysis. A total of 3840 unique reductive amination reactions were screened to demonstrate the throughputs that are
N-Carbomethoxy-N-methoxy-(2-chloromethyl)-anilines, their preparation and their use as precursors for preparing 2-(pyrazol-3'-yloxymethylene)-anilides
申请人:Dochnahl Maximilian
公开号:US20130005986A1
公开(公告)日:2013-01-03
The present invention relates to N-carbomethoxy-N-methoxy-(2-chloromethyl)-aniline compounds of the formula I, wherein: n is 0, 1, 2 or 3, each R
1
is independently selected from halogen, C
1
-C
4
-alkyl, C
1
-C
4
-haloalkyl, C
1
-C
4
-alkoxy or C1-C4-haloalkoxy. The invention also relates to processes and intermediates for preparing such compounds of formula I. The invention furthermore relates to processes for preparing 2-(pyrazol-3′-yloxymethylene)-anilides in which compounds of formula I are applied as precursors.
Direct Catalytic Decarboxylative Amination of Aryl Acetic Acids
作者:Duanyang Kong、Patrick J. Moon、Odey Bsharat、Rylan J. Lundgren
DOI:10.1002/anie.201912518
日期:2020.1.13
the acid unit to generate isocyanate or radical intermediates. Reported here is a process for the direct chemoselective decarboxylative amination of electron-poor arylacetates by oxidative Cu catalysis. The reaction proceeds at (or near) roomtemperature, uses native carboxylicacid starting materials, and is compatible with protic, electrophilic, and other potentially complicating functionality. Mechanistic