Aromatic amines from carboxylic acids and ammonia. A homogeneous catalytic process

1981 ◽  
Vol 46 (19) ◽  
pp. 3930-3932 ◽  
Author(s):  
Gregory G. Arzoumanidis ◽  
Frank C. Rauch
1974 ◽  
Vol 8 (5) ◽  
pp. 579-582
Author(s):  
I. P. Gol'dshtein ◽  
A. I. Serebryanskaya ◽  
T. I. Perepelkova ◽  
E. N. Gur'yanova ◽  
A. I. Shatenshtein

1975 ◽  
Vol 6 (10) ◽  
Author(s):  
GORDON W. GRIBBLE ◽  
PIERRE D. LORD ◽  
JERAULD SKOTNICKI ◽  
STEPHEN E. DIETZ ◽  
JEFFERSON T. EATON ◽  
...  

1978 ◽  
Vol 33 (8) ◽  
pp. 937-941 ◽  
Author(s):  
A. F. A. Shalaby ◽  
H. A. Daboun ◽  
M. A. Abdel Aziz

Abstract 5-Arylazo-2-thiohydantoin derivatives (2a,c) were cleaved and rearranged by aqueous sodium hydroxide to give the corresponding 1-aryl-⊿2-1,2,4-trazole-5-imino-3-carboxylic acids (3a-c). 3 a was decarboxylated to 1-phenyl-⊿2 -1,2,4-triazoline-5-imine (5). Hydrolysis of 5-arylazo-1-phenyl-2-thiohydantoins (6a-c) behaved in different manner affording 1-aryl-4-phenyl-⊿2 -1,2,4-triazoline-5-thione-3-carboxylic acids (7a-c). Fusing (2a-c) with aromatic amines at high temperature gave the corresponding anilides (8a-h). Treatment of 5-arylidene-2-thiohydantoin derivatives (9a-c) with hydrazine hydrate gave colourless products of thioureido cinnamic acid hydrazide derivatives (10a-c), while refluxing 5-arylidene-2-methylmercaptohydantoin (11a-d) with hydrazine hydrate and/or benzo-phenone hydrazone gave the corresponding glycocyamidine derivatives (12a-g).


2007 ◽  
Vol 111 (12) ◽  
pp. 4596-4605 ◽  
Author(s):  
Sudipa Panigrahi ◽  
Soumen Basu ◽  
Snigdhamayee Praharaj ◽  
Surojit Pande ◽  
Subhra Jana ◽  
...  

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