4.8 Article

Direct Synthesis of β-Aminoenals through Reaction of 1,2,3-Triazine with Secondary Amines

Journal

ORGANIC LETTERS
Volume 19, Issue 13, Pages 3568-3571

Publisher

AMER CHEMICAL SOC
DOI: 10.1021/acs.orglett.7b01543

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Funding

  1. National Institutes of Health [CA042056]
  2. NSF fellowship [NSF/DGE-1346837]
  3. Turner B. and Lesly Starr Shelton Endowment Scholarship

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Simple and direct nucleophilic addition of secondary amines,, including imidazole; to, 1,2,3-triazine under mild reaction conditions (THF, 25-65 degrees C, 12-48 h), requiring no additives, cleanly provides beta-aminoenals 4 in good yields (21 examples, 31-79%). The reaction proceeds by amine nucleophilie addition to C4 of the 1,2,3-triazine in situ loss of N-2, and subsequent imine hydrolysis to provide 4.

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