Abstract: N-(Trifluoroacetyl) succinimide, easily prepared from trifluoroacetic anhydride and succinimide forms a novel, convenient trifluoroacetylating reagent. It trifluoroacetylates alcohols, phenols and amines, to generate trifluoroacetate esters, and trifluoroacetamides in excellent yields with very efficient work up procedures. Key words: N-(trifluoroacetyl) succinimide, trifluoroacetylating reagent, trifluoroacetate esters, trifluoroacetamides