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A New Route to the Synthesis of 4-Chloro-3-methylquinolines from 1-(2-Aminophenyl)propanones Using Vilsmeier Reagent.

✍ Scribed by Amaresh, R. R. ;Perumal, P. T.


Book ID
121297342
Publisher
Taylor and Francis Group
Year
1997
Tongue
English
Weight
207 KB
Volume
27
Category
Article
ISSN
0039-7911

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## Abstract 3‐Alkyl/aryl‐3‐ureido‐1__H__,3__H__‐quinoline‐2,4‐diones (**2**) and 3a‐alkyl/aryl‐9b‐hydroxy‐3,3a,5,9b‐tetrahydro‐1__H__‐imidazo[4,5‐__c__]quinoline‐2,4‐diones (**3**) react in boiling concentrated HCl to give 5‐alkyl/aryl‐4‐(2‐aminophenyl)‐1,3‐dihydro‐2__H__‐imidazol‐2‐ones (**6**). T