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ChemInform Abstract: Preparation of Functionalized Dialkylzincs via a Boron-Zinc Exchange. Reactivity and Catalytic Asymmetric Addition to Aldehydes.

✍ Scribed by F. LANGER; L. SCHWINK; A. DEVASAGAYARAJ; P.-Y. CHAVANT; P. KNOCHEL


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

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Enantioselective Catalytic Addition of F
✍ Dr. Walter Brieden; Roswitha Ostwald; Prof. Dr. Paul Knochel πŸ“‚ Article πŸ“… 1993 πŸ› John Wiley and Sons 🌐 English βš– 407 KB

To nBuLi (2.9 g. 46 mmol), constantly stirred at -8O"C, precooled pentane was added dropwise until a homogeneous solution was obtained (ca. 20 mL). After one week at -90 "C colorless blocks crystallized with a melting point of -34(2) 'C. rBuLi: tBuLi (2.2 g, 34 mmol) was treated as described for nBu