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Synthesis 1988; 1988(5): 383-386
DOI: 10.1055/s-1988-27582
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4-Alkoxy-6-alkyl-2-pyrones as Precursors for 4-Alkoxy-6-alkyl-2-aminobenzoic Acid Derivatives

Tim Fat Tam* , Peter Coles
  • *Syntex Inc., 2100 Syntex Ct., Mississauga, Ontario L5N 3X4, Canada
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Publication Date:
20 August 2002 (online)

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4-Alkoxy-6-alkyl-2-pyrones undergo Diels-Alder reaction with dimethyl acetylenedicarboxylate to give dimethyl 4-alkoxy-6-alkylphthalates, which can be converted into 4-alkoxy-6-alkyl-2-aminobenzoic esters via a simple two-step sequence.

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