Blake Alexander J., Boyd Ewan C., Gould Robert O., Paton R. Michael, J. Chem. Soc. Perkin Trans. 1, (1994) N 19, S 2841- 2847
作者:Blake Alexander J., Boyd Ewan C., Gould Robert O., Paton R. Michael
DOI:——
日期:——
Stereoselective cycloaddition of nitrile oxides to 4-vinyl-oxazolines and -oxazolidines
作者:Ewan C. Boyd、R.Michael Paton
DOI:10.1016/s0040-4039(00)93409-9
日期:1993.5
Cycloaddition of nitrileoxides to 4-vinyl-2-oxazoline 1 and to 4-vinyloxazolidine 2 afford diastereomeric mixtures of 2-isoxazolines in which the erythro product predominates (32–64% d.e.). In contrast, the corresponding reactions with acyclic analogue 3 favoured the threo-adducts and were less selective (8–20% d.e.).