The reaction of 4-methylquinoline with organolithium reagents followed by ethyl chloroformate leads to N-ethoxycarbonyl-1,2-dihydroquinolines, and not the 1,4-analogues as recently postulated.
C. E. Crawforth, O. Meth-Cohn and C. A. Russell, J. Chem. Soc., Chem. Commun., 1972, 259 DOI: 10.1039/C39720000259
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