Ma Wenpeng, Yongjun Mao, Kai Xie
May 1, 2014
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Journal
Journal of Heterocyclic Chemistry
Abstract
New and practical synthetic route of N-(3-cyano-7-ethoxy-4-oxo-1,4-dihydroquinolin-6-yl)acetamide (1) is described, through the cyclization of 2-aminophenyl-ethanone (12) with N,N-dimethylformamide dimethylacetal. The overall yield of 1 obtained from this process is 46% (five steps) with a purity of >99% (HPLC).