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The Studies on Quinolizinium Salts. I. Syntheses of Quinolizinium and 1-, 2-, 3-, and 4-Methylquinolizinium Bromides
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1964
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Monomethyl DerivativesDerivativesHeterocyclic4-Methylquinolizinium BromidesOrganic ChemistryQuinolizinium SaltsSynthetic ChemistryChemistryHeterocycle ChemistryNatural Product SynthesisDerivative (Chemistry)Quinolizinium BromideEnantioselective SynthesisAvailable Ethyl PicolinateI. Syntheses
Quinolizinium bromide (IVa) was prepared in good yield from commercially available ethyl picolinate and γ-butyrolactone. This synthetic route is convenient for synthesis of the parent compound (VIa) and was extended to preparations of the monomethyl derivatives (IVb∼d, VII).