Author/Authors :
Kitagaki، نويسنده , , Shinji and Yasugahira، نويسنده , , Motoki and Anada، نويسنده , , Masahiro and Nakajima، نويسنده , , Makoto and Hashimoto، نويسنده , , Shunichi، نويسنده ,
Abstract :
Enantioselective 1,3-dipolar cycloaddition of the ester-carbonyl ylides derived from methyl 2-(diazoacetyl)benzoate and 3-(diazoacetyl)-2-naphthoate with dipolarophiles has been effected with the aid of dirhodium(II) tetrakis[N-phthaloyl-(S)-tert-leucinate], affording cycloadducts in up to 93% ee.
