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| a process which requires the intermediacy of the imminium ion ,which subsequently cyclizes to give the corresponding quinoline viaoss of dimethylamine. Similar imminium ions have been reported to be formed from the reaction o f pchlorovinyl aldehydes with primary arylamines at room temperature, which could either be isolated o r cyclized directly to the corresponding quinolin ,although nitro-substituted arylamines didnot give the required quinoline |
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