Thiourea Dioxide Coupled with Trace Cu(II): An Effective Process for the Reductive Degradation of Diatrizoate

Author(s):  
Haodan Xu ◽  
Lihong Wang ◽  
Xuchun Li ◽  
Zhiqiang Chen ◽  
Tao Zhang
Author(s):  
Sergei V. Makarov ◽  
Evgeny V. Kudrik ◽  
Rudi van Eldik ◽  
Ekaterina V. Naidenko

Author(s):  
Huiping Xing ◽  
Ouya Ma ◽  
Qi Yong ◽  
Chun Yang ◽  
Xiaolian Chao ◽  
...  
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2014 ◽  
Vol 55 (5) ◽  
pp. 566-570 ◽  
Author(s):  
Yu. V. Polenov ◽  
E. V. Makarova ◽  
E. V. Egorova

2012 ◽  
Vol 85 (12) ◽  
pp. 1339-1344 ◽  
Author(s):  
Yanqing Wang ◽  
Ling Sun ◽  
Bunshi Fugetsu

2015 ◽  
Vol 2015 (30) ◽  
pp. 5011-5020 ◽  
Author(s):  
Ying Hu ◽  
Attila K. Horváth ◽  
Sasa Duan ◽  
György Csekő ◽  
Sergei V. Makarov ◽  
...  

1987 ◽  
Vol 40 (10) ◽  
pp. 1663 ◽  
Author(s):  
J Rosevear ◽  
JFK Wilshire

The reaction of several substituted o- nitronitrosobenzenes with O- and p- anisidine , and 2,4- dimethoxyaniline in acetic acid gives in good yield the corresponding enitroazobenzenes which are readily reduced with thiourea dioxide ( formamidinesulfinic acid) to the corresponding 2-(methoxypheny1)-2H-benzotriazoles, demethylation of which furnished the corresponding 2- (hydroxypheny1)-2H-benzotriazoles. Demethylation of the dimethoxy derivatives was best accomplished with boron tribromide in methylene chloride, the methoxy group located ortho to the benzotriazole ring being demethylated more readily than is the para-methoxy group. The reaction of enitroazobenzenes containing a methoxy group with hydrobromic acid in acetic acid results in cleavage of the azo bond and also partial bromination to give o- nitroaniline and some of its brominated derivatives.


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