Decarboxylative Amination: Diazirines as Single and Double Electrophilic Nitrogen Transfer Reagents
作者:Preeti P. Chandrachud、Lukasz Wojtas、Justin M. Lopchuk
DOI:10.1021/jacs.0c09403
日期:2020.12.30
structure and functionality of the substrate to be aminated. Further, many of these reagents are challenging to handle, engage in undesired side reactions, and function only within a narrow scope. Here we report the use of diazirines as practical reagents for the decarboxylative amination of simple and complex redox-active esters. The diaziridines thus produced are readily diversifiable to amines, hydrazines
Preparation of Perfluoroalkyl Ketones by the Reaction of Perfluoroalkyllithiums with Esters
作者:Hidemitsu Uno、Yasukazu Shiraishi、Hitomi Suzuki
DOI:10.1246/bcsj.62.2636
日期:1989.8
A variety of esters react with perfluoroalkyllithiums in situ generated from perfluoroalkyl iodides and methyllithium to give perfluoroalkyl ketones in good yields. Perfluoroalkyllithiums add to α, β-unsaturated esters only in the 1,2-addition mode even in the presence of copper salt. Exception was observed in the reaction with maleates where perfluoroalkylated succinic esters and normal 1,2-addition
[EN] PROCESSES AND COMPOUNDS FOR THE DECARBOXYLATIVE AMINATION OF REDOX-ACTIVE ESTERS WITH DIAZIRINES<br/>[FR] PROCÉDÉS ET COMPOSÉS POUR L'AMINATION DÉCARBOXYLATIVE D'ESTERS À ACTIVITÉ REDOX AVEC DES DIAZIRINES
申请人:H LEE MOFFITT CANCER CT & RES
公开号:WO2020252457A1
公开(公告)日:2020-12-17
The invention described herein relates generally to processes for the synthesis of amine-containing organic compounds. More specifically, described herein relates to processes for the decarboxylative amination of redox-active esters with diazirines and the products formed thereof. Compounds for use in the above processes are also described.
Hemifluorinated ketones RCORF, in which an F-alkyl chain (C8F17 or C6F13) is directly bound to the carbonyl group, were prepared from F-alkyl Grignard reagents. The reaction of acyl anhydrides (RCO)2O upon these organometallic derivatives constitutes a particularly competitive route to these ketones, compared to that of the corresponding acyl chlorides. The methyl (F-alkyl) ketones were also obtained
由F-烷基格氏试剂制备半氟化的酮R = CO = R F,其中F-烷基链(C 8 F 17或C 6 F 13)直接与羰基键合。与相应的酰氯相比,酰基酸酐(RCO)2 O在这些有机金属衍生物上的反应构成了通往这些酮的特别竞争的途径。还通过(F-烷基)炔烃R的硫酸汞催化水合得到的甲基(F-烷基)酮˚F CCH。
An Efficient Synthesis of Perfluoroalkyl Ketones Using Perfluoroalkyllithiums
Perfluoroalkylation of esters with perf luoroalkyllithiums occurs smoothly in ether at −78 °C, giving the corresponding perfluoroalkylketones in good yields.