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Enantiomerically pure α-fluoroalkyl-α-amino acids: Synthesis of (R)-α-difluoromethyl-alanine and (S)-α-difluoromethyl-serine

✍ Scribed by Pierfrancesco Bravo; Silvia Capelli; Stefano V Meille; Paolo Seresini; Alessandro Volonterio; Matteo Zanda

Publisher: Elsevier Science
Year: 1996
Tongue: English
Weight: 726 KB
Volume: 7
Category: Article
ISSN: 0957-4166
DOI: 10.1016/0957-4166(96)00287-x

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See [14a]. BF,.Et,O-Catalyzed benzyloxylation of 3 led to partially racemized 4 (cu. 70%) [14b]. For other recent bcnzyloxylations of ~,P-unsaturated carbonyl compounds, see [14c].