Metalation and alkylation of 3,6-dihydrothiazine 1-oxides prepared via Diels-Alder cycloadditions of N-sulfinyl dienophiles
β Scribed by Bell, Scott I.; Parvez, M.; Weinreb, Steven M.
- Book ID
- 126100907
- Publisher
- American Chemical Society
- Year
- 1991
- Tongue
- English
- Weight
- 650 KB
- Volume
- 56
- Category
- Article
- ISSN
- 0022-3263
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Me2AICI -and TiCl4-catalyzed asymmetric hetero Diels-Alder cycloaddition reactions of 2,4-diphenyl-l-thiabuta-l,3-diene with (S)-N-acryloyl-and (S)-N-crotonoyl-4-benzyl-l,3-oxazolidin-2one dienophiles are described in which not only the sense of the n-facial selectivity but also the degree dramatica
A hydroxymethylated polystyrene resin has been convened to its vinyisuifonylethyl ether (1) by DBU catalyzed addition of the hydmxy groups to divinyl sulfone. The support obtained was used to convert 5-and 6-(tetrahydropyran-2-yloxy)-1,2,3,4-tetrahydroisoquinolines to a set of N-alkylated tetrahydro