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Synlett 1995; 1995(SI): 565-567
DOI: 10.1055/s-1995-5289
DOI: 10.1055/s-1995-5289
letter
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Lithium Trifluoromethanesulfonimide in Acetone or Diethyl Ether as a Safe Alternative to Lithium Perchlorate in Diethyl Ether for Effecting Diels-Alder Reactions. Unexpected Influence of the Counterion of Exo/Endo Selectivity
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Publikationsverlauf
Publikationsdatum:
31. Dezember 2000 (online)
![](https://www.thieme-connect.de/media/synlett/1995SupI/lookinside/thumbnails/10.1055-s-1995-5289-1.jpg)
Concentrated solutions of lithium trifluoromethanesulfonimide in either acetone or diethyl ether constitute convenient and safe alternatives to lithium perchlorate in diethyl ether for promoting and accelerating [4+2] cycloaddition reactions.
Diels-Alder - lithium perchlorate - dienophiles - dienes - lithium trifluoromethanesulfonimide - [4+2] cycloaddition