Liebigs Annalen der Chemie

Reaktionen der Trialkylsilyl??trifluormethansulfonate, X. N??(Trifluoracetyl)?螃?, β??didehydro?螃窿?aminosäureester durch Trimethylsilanol??Eliminierung aus 2??[( …

T Seethaler, G Simchen

文献索引：Seethaler, Toni; Simchen, Gerhard Liebigs Annalen der Chemie, 1991 , p. 11 - 17

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摘要

Reactions of Trialkylsilyl Trifluoromethanesulfonates, X* I.-N-(Trifluoroacety1)-a $-didehydro- a-amino Carboxylic Acid Esters from 2-(Trifluoroacetyl) amino]-3-(trimethylsiloxy) carboxylic Acid Esters by Elimination of Trimethylsilanol a-Amino-P-(trimethy1siloxy) carboxylates 4 are obtained by tri-acid anhydride (8) or methanesulfonic acid anhydride (15) methylsiloxy alkylation of the ketene acetal 1 with aldehydes yields (3-didehydro amino acid esters 7. ...