The catalytic and asymmetric nitro-Mannich reaction of nitro compounds to α-imino esters catalyzed by chiral bisoxazoline-copper complexes [Eq. (1); Pg = protecting group] gave β-nitro-α-amino esters with excellent diastereo- and enantioselectivities. The reactions can be performed under ambient con
✦ LIBER ✦
A simple microbiological assay for the stereospecific differentiation of α and β isomers of arteether
✍ Scribed by T. R. Santha Kumar; S. P. S. Khanuja; D. C. Jain; Suchi Srivastava; A. K. Bhattacharya; R. P. Sharma; Sushil Kumar
- Publisher
- John Wiley and Sons
- Year
- 2000
- Tongue
- English
- Weight
- 48 KB
- Volume
- 14
- Category
- Article
- ISSN
- 0951-418X
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Catalytic Enantioselective Addition of N
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Catalytic Enantioselective Addition of N
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Nagatoshi Nishiwaki; Kristian Rahbek Knudsen; Kurt V. Gothelf; Karl Anker Jørgen
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The development of CÀC bond-forming reactions that create two new stereogenic centers with high diastereo-and enantioselectivity in a single step can open new routes to highly valuable optically active compounds. The catalytic enantioselective addition to imines [1] belongs to this class of importan