Ring transformation of heterocyclic compounds with weak nucleophiles. 22. Novel pyrimidine rearrangement reaction. A new synthesis of 4-formylimidazoles

1981 ◽  
Vol 46 (3) ◽  
pp. 608-610 ◽  
Author(s):  
C. Gonczi ◽  
Z. Swistun ◽  
H. C. Van der Plas

1965 ◽  
Vol 43 (9) ◽  
pp. 2486-2492 ◽  
Author(s):  
C. F. H. Allen

Oximes of gamma cyano- and gamma nitro-ketones are decomposed by heat as well as by acids. From the very complex mixtures resulting there have been isolated arylated pyrroles, arylated 2-aminopyridines, and the corresponding pyridones, as well as several minor products. This behavior constitutes a new synthesis of these heterocyclic compounds. In a Beckmann rearrangement γ-benzoyl-α,β-diphenylbutyronitrile gave an anilide, the structure of which was confirmed by an independent synthesis. By physical methods both structures of gamma ketonic amides are confirmed.



1978 ◽  
Vol 15 (6) ◽  
pp. 949-953 ◽  
Author(s):  
M. S. Manhas ◽  
M. Sugiura ◽  
H. P. S. Chawla


1977 ◽  
Vol 8 (40) ◽  
pp. no-no
Author(s):  
G. STEFANCICH ◽  
V. NACCI ◽  
G. FILACCHIONI ◽  
G. C. PORRETTA ◽  
R. GIULIANO ◽  
...  


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