Parallel Synthesis of 1,2,3-Thiadiazoles Employing a "Catch and Release" Strategy.

نویسندگان

  • Yonghan Hu
  • Sylvie Baudart
  • John A. Porco
چکیده

1,2,3-thiadiazoles were synthesized in parallel using a polymer sulfonyl hydrazide resin (PS-TsNHNH2) and employing a "catch and release" synthesis strategy. Resin capture of ketones synthesized from Weinreb amides and Grignard reagents afforded resin-bound sulfonylhydrazones. Cyclizative cleavage of supportbound sulfonylhydrazones with thionyl chloride afforded 1,2,3-thiadiazoles. Excess thionyl chloride was neutralized using liquid-liquid extraction cartridges.

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عنوان ژورنال:
  • The Journal of organic chemistry

دوره 64 3  شماره 

صفحات  -

تاریخ انتشار 1999