21461-84-7, Name is (S)-( )-5-Oxo-2-tetrahydrofurancarboxylic Acid, belongs to tetrahydrofurans compound, is a common compound. Formula: C5H6O4In an article, once mentioned the new application about 21461-84-7.
A study into the synthesis and synthetic utility of (S)-3-benzyloxy-3,4,5,6-tetrahydropyridine N-oxide is described. This nitrone is readily accessed from l-glutamic acid and the regio- and stereoselectivity of cycloaddition of this compound with a range of alkenes has been probed. Reductive cleavage of the major cycloadducts provides access to a diverse range of trans-2,3-disubstituted piperidines. The synthetic scope of this nitrone is further illustrated by the use of this compound as a key intermediate in a concise synthesis of the anti-malarial agent (+)-febrifugine.
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Reference：
Tetrahydrofuran – Wikipedia,
Tetrahydrofuran | (CH2)3CH2O – PubChem