An Expeditious Synthesis of New 5-acetyl-4-(4’-alkyloxyphenyl)- 3-cyano-6-methylpyridine-2(1H)-thiones and Derivatives

نویسندگان

  • Guan-Yeow Yeap
  • Elham A. Al-Taifi
  • Wan Ahmad
  • Kamil Mahmood
  • Yoshiyuki Nakamura
  • Daisuke Takeuchi
چکیده

A convergent synthesis of 5-acetyl-4-(4'-alkyloxyphenyl)-3-cyano-6-methylpyridine-2(1H)-thiones and their derivatives S-alkylthiopyridines was described. The main steps towards the formation of the title compounds involve the reactions of 4-alkyloxybenzaldehydes with 2-cyanothioacetamide to afford 2-cyano-3(4'-alkyloxyphenyl)prop-2-enethioamides which then reacted with acetylacetone prior to the alkylation to give the final compounds 5-acetyl-4-(4'-alkyloxyphenyl)-3-cyano-6-methyl-2-S-alkylthiopyridines in satisfactory yields.

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تاریخ انتشار 2013