Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5217747 | Tetrahedron | 2013 | 7 Pages |
Abstract
An asymmetric formal [4+1] cycloaddition of camphor-derived sulfonium salts with aldimines has been described. The reaction allows for the efficient synthesis of trans-2,3-disubstituted-2,3-dihydrobenzofurans in moderate to good yields with >95:5 dr and up to 98% ee under mild reaction conditions.
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