rate with high vapor pressure at T>2500"C, thus accounting for their low content; the high melting impurities Ta and W, on the other hand, remain in the niobium. The samples R-Nb-1 were electrolyzed; the major impurities Ta and W are thus removed, but metals such as Cr, Fe, and Co are apparently inv
✦ LIBER ✦
Enantiodivergent Chemoenzymatic Synthesis of ( R )- and ( S )-β-Proline in High Optical Purity
✍ Scribed by Mazzini, Claudio; Lebreton, Jacques; Alphand, Véronique; Furstoss, Roland
- Book ID
- 120503756
- Publisher
- American Chemical Society
- Year
- 1997
- Tongue
- English
- Weight
- 158 KB
- Volume
- 62
- Category
- Article
- ISSN
- 0022-3263
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