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Oxidative Methylamination of Nitroquinolines

 

作者: Marian Woźniak,   Maria Grzegożek,  

 

期刊: Liebigs Annalen der Chemie  (WILEY Available online 1993)
卷期: Volume 1993, issue 8  

页码: 823-829

 

ISSN:0170-2041

 

年代: 1993

 

DOI:10.1002/jlac.1993199301130

 

出版商: WILEY‐VCH Verlag

 

关键词: Methylaminations;σ‐Adducts, methylamino;Calculations, FMO;Quinolines;Aminations

 

数据来源: WILEY

 

摘要:

Abstract3‐, 5‐, 6‐, 7‐ and 8‐nitroquinoline as well as 5,7‐ and 6,8‐dinitroquinoline are methylaminated with a liquid methylamine solution of potassium permanganate (LMA/PP) to the corresponding mono‐ and bis(methylamino)‐substituted compounds. 2‐Nitroquinoline is aminated with LMA/PP to 2‐(methylamino)quinoline. The intermediate methylamino σ‐adducts of 3‐nitro‐ and 5,7‐ and 6,8‐dinitroquinoline are detected by1H‐NMR spectroscopy. Quantum chemical calculations for the mononitroquinolines suggest that the experimentally observed regioselectivity of the methylamination is controlled by an interaction of frontal molecu

 

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