Preparation of quinone imine ketals via intramolecular condensation of amino-substituted quinone monoketals. Anodic oxidation chemistry of trifluoroacetamide derivatives of 1,4-dimethoxybenzenes and 4-methoxyphenols

1990 ◽  
Vol 55 (7) ◽  
pp. 2019-2026 ◽  
Author(s):  
John S. Swenton ◽  
Chuan Shih ◽  
Chung Pin Chen ◽  
Chun Tzer Chou
1996 ◽  
Vol 410 (1) ◽  
pp. 87-92 ◽  
Author(s):  
José R. González Lomba ◽  
Eduardo Pinilla Gil ◽  
Pedro Cintas Moreno ◽  
Rosa M García-Moncó Carra ◽  
Antonio Sánchez Misiego

2016 ◽  
Vol 56 (1) ◽  
pp. 269-276 ◽  
Author(s):  
Abdul Wahab ◽  
Christos Douvris ◽  
Jiří Klíma ◽  
Filip Šembera ◽  
Juri Ugolotti ◽  
...  

Author(s):  
H. BINDER ◽  
A. KÖHLING ◽  
H. KRUPP ◽  
K. RICHTER ◽  
G. SANDSTEDE

1991 ◽  
Vol 44 (12) ◽  
pp. 1691 ◽  
Author(s):  
RA Russell ◽  
RW Longmore ◽  
RN Warrener

Anodic oxidation of simple 2′,5′-dimethoxyacetanilides proceeds under mildly basic conditions to afford either monomeric or dimeric quinone bisacetals, depending on the structure of the substrate. Similarly, the oxidation of linked derivatives of 2′,5′-dimethoxyacetanilides is shown to exhibit a comparable sensitivity, with non-alkylated amides being efficiently converted into bis(quinone bisacetals). The regiospecificity of acetal hydrolysis for both simple and linked quinone bisacetals is shown to be dependent upon the nature of the N-acyl group. The annelation of these hydrolysis products with the anion of 3-cyanophthalide to yield (acylamino)anthraquinones is also reported.


2009 ◽  
pp. 10871 ◽  
Author(s):  
Yong Leng Kelvin Tan ◽  
Pascal Pigeon ◽  
Elizabeth A. Hillard ◽  
Siden Top ◽  
Marie-Aude Plamont ◽  
...  

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