Chemistry is traditionally divided into organic and inorganic chemistry. Application In Synthesis of (S)-(-)-alpha-Hydroxy-gamma-butyrolactone, The former is the study of compounds containing at least one carbon-hydrogen bonds.In a patent，Which mentioned a new discovery about 52079-23-9
Commercially available N-Boc-4-O-benzyl-L-homoserine was treated with trifluoroacetic acid and the corresponding, N-deprotected derivative was submitted to deamination to give 4-O-benzyl-3-deoxy-L-glycero-tetronic acid (5). In another approach to 3-deoxy-L-glycero-tetronic acid protected at position 4, the carboxylic groups in L-malic acid were reduced, and the resulting triol was benzylidenated. Oxidation of the 2,4-O-benzylidene derivative formed with CrO3-pyridine complex in the presence of t-butyl alcohol gave t-butyl 2,4-O-benzylidene-3-deoxy-L-glycero-tetronate (13). The latter was saponified with aqueous sodium hydroxide to give, after Na+ exchange for H+, 2,4-O-benzylidene-3-deoxy-L-glycero-tetronic acid (15). Opening of the acetal ring in 13, followed by hydrolytic cleavage of the t-butyl ester function gave material indistinguishable from 5 obtained in the original way. When tested for their efficiency of N-acylation of derivatives of D-perosamine, both acids 5 and 15 gave the corresponding tetronamido derivatives in high yields.
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Reference：
Tetrahydrofuran – Wikipedia,
Tetrahydrofuran | (CH2)3CH2O – PubChem