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  • Title: Regioselective formation of 2,4,5-trisubstituted oxazoles through transition-metal free heterocyclization of 1,3-diynes with N,O-bis(trimethylsiyl)acetamide.
    Author: Zhang L, Zhao X.
    Journal: Org Lett; 2015 Jan 16; 17(2):184-6. PubMed ID: 25547426.
    Abstract:
    Transition-metal free heterocyclization reaction of 1,3-diynes with N,O-bis(trimethylsiyl)acetamide was accomplished in the presence of t-BuOK and acetonitrile at 120 °C. This method regioselectively gave 2,4,5-trisubstituted oxazoles in yields up to 97%.
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