First Example of Lewis Acid Catalyzed 3-Substituted 5-Arylidene-1-methyl-2-thiohydantoin Formation

First Example of Lewis Acid Catalyzed 3-Substituted 5-Arylidene-1-methyl-2-thiohydantoin Formation

ABSTRACT A survey of Lewis acids was conducted to facilitate the formation of arylidenethiohydantoins. The use of indium(III) trif­late shows significant advantages in facilitating this reaction. In most examples, the Lewis acid promoted catalysis gave shorter reaction times, higher conversion, and...

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Veröffentlicht in:Synthesis (Stuttgart) 2006-12, Vol.2006 (24), p.4200-4204
Hauptverfasser: Gregg, Brian T., Earley, William G., Golden, Kathryn C., Quinn, John F., Razzano, Dana A., Rennells, W. Martin
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container_end_page 4204
container_issue 24
container_start_page 4200
container_title Synthesis (Stuttgart)
container_volume 2006
creator Gregg, Brian T.
Earley, William G.
Golden, Kathryn C.
Quinn, John F.
Razzano, Dana A.
Rennells, W. Martin
description ABSTRACT A survey of Lewis acids was conducted to facilitate the formation of arylidenethiohydantoins. The use of indium(III) trif­late shows significant advantages in facilitating this reaction. In most examples, the Lewis acid promoted catalysis gave shorter reaction times, higher conversion, and better purity profiles as compared to the traditional uncatalyzed reactions.
doi_str_mv 10.1055/s-2006-950342
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title First Example of Lewis Acid Catalyzed 3-Substituted 5-Arylidene-1-methyl-2-thiohydantoin Formation
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