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ChemInform Abstract: Oxazaborolidine-Catalyzed Enantioselective Reduction of Cyclic meso- Imides.

✍ Scribed by M. OSTENDORF; R. ROMAGNOLI; I. CABEZA PEREIRO; E. C. ROOS; M. J. MOOLENAAR; W. N. SPECKAMP; H. HIEMSTRA

Publisher
John Wiley and Sons
Year
2010
Weight
32 KB
Volume
28
Category
Article
ISSN
0931-7597

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✦ Synopsis

Oxazaborolidine-Catalyzed Enantioselective Reduction of Cyclic meso-Imides. -It is found that several meso-imides can be reduced with high enantioselectivity by means of the oxazaborolidine shown in the scheme and subsequent ethanolysis or acetylation. By conversion to a benzenesulfonyllactam, it is possible to raise the enantioselectivity to ΒΏ99% after a single recrystallization. The lactams are useful starting materials for various synthetic purposes. -(OSTENDORF, M.;

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