100. P. Müller, J.-P. Schaller,
     “Synthesis of 1H-Cyclopropal[g]quinolinevia Trapping of an ortho-Quinodimethane”
     Helv. Chim. Acta 1990, 73, 1228-1232.

1H-Cyclopropa[g]quinoline (3-aza-lH-cyclopropa[b]naphthalene; 17) was synthesized via interception of the heterocyclic ortho -quinodimethane 15 with l-bromo-2-chlorocyclopropene, followed by aromatization of the adduct 16 with t-BuOK.

DOI : 10.1002/hlca.19900730512 

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