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The Synthesis of Poly-α-amino Acids in Anhydrous Hydrogen Fluoride 1

✍ Scribed by Kopple, Kenneth D.; Katz, Joseph J.

Book ID
126258442
Publisher
American Chemical Society
Year
1956
Tongue
English
Weight
1015 KB
Volume
78
Category
Article
ISSN
0002-7863

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Synthetic Methods and Reactions. Part 106. Suppression of anchimerically assisted rearrangement products in the synthesis of α-fluorocarboxylic acids from α-amino acids with 48:52 (w/w) hydrogen fluoride/pyridine [1]
✍ George A. Olah; G. K. Surya Prakash; Yah Li Chao 📂 Article 📅 1981 🏛 John Wiley and Sons 🌐 German ⚖ 153 KB

## Abstract Anchimerically assisted rearrangement, observed in the fluorination of some α‐amino acids with 70 : 30 (w/w) hydrogen fluoride/pyridine (by weight) in the presence of NaNO~2~, is substantially or fully suppressed by using the less acidic reagent 48 : 52 (w/w) hydrogen fluoride/pyridine.