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Acetylenic Chemistry. Part 17. Acetylenic Amides as Precursors for the Synthesis of 3-Propynylquinazolinones
Reisch, J.,Usifoh, C. O.,Oluwadiya, J. O.
, p. 1953 - 1956 (2007/10/02)
Cyclocondensation of acetylenic amides with triethylorthoformate and triethylorthoacetate in boiling glacial acetic acid under nitrogen gave 3-propynylquinazolinones. 2-Ethoxy-2-methyl-3quinazolin-4(1H,3H)-one (3b) and 2-ethoxy-2-met
