Synthesis of ω-tert-butyl esters of aspartic acid and glutamic acid via B,B-difluoroboroxazolidones

DOI: 10.1248/cpb.44.2189

Source and publish data:

Chemical and Pharmaceutical Bulletin p. 2189 - 2191 (1996)

Update date:2022-08-29

Topics:

Authors:

Wang, Jidong

Okada, Yoshio

Wang, Zongmu

Wang, Yuhong

Li, Wei Li, Wei

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Article abstract of DOI:10.1248/cpb.44.2189

B,B-Difluoroboroxazolidones (DFBONs) were synthesized for the first time from salts of amino acid and BF₃·Et₂O, and their properties were examined. DFBONs were used in selective preparation of Glu(OBu(t)) and Asp(OBu(t)) in good yields under catalysis with BF₃·Et₂O and H₃PO₄. Amberlite XAD-2 resin was successfully employed to purify the above amino acid derivatives.

Full text of DOI:10.1248/cpb.44.2189

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Product name:L-Glutamic acid 5-tert-butyl ester

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