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(2R,3R)-(-)-2,3-Butanediol is used as a chiral auxiliary, chiral ligand and building block. Cyclocondenses with ketones for (13)C NMR determination of optical purity. It is used in the resolution of carbonyl compounds in gas chromatography.
James A. Marshall; Shiping Xie. Synthesis of a C22-34 Subunit of the Immunosuppressant FK-506.J. Org. Chem.1995,60 (22), 7230-7237.
Mark J. Burk; John E. Feaster; William A. Nugent; Richard L. Harlow. Preparation and use of C2-symmetric bis(phospholanes): production of .alpha.-amino acid derivatives via highly enantioselective hydrogenation reactions.J. Am. Chem. Soc.1993,115 (22), 10125-10138.
Forms cyclic acetals with aldehydes, which have been used in an enantioselective Lewis acid catalyzed aldol condensation: J. Am. Chem. Soc., 104, 7371,7372 (1982); Tetrahedron, 40, 4685 (1984):
Similarly, acetals react with Li organocuprates in the presence BF3 etherate to give only one of the two possible enantiomeric ethers: Tetrahedron, 45, 507 (1989):
Has been used for the resolution and determination of enantiomeric excess of chiral ketones by formation of the cyclic acetal and 13C-NMR: Tetrahedron Lett., 2183 (1977); J. Am. Chem. Soc., 109, 1363 (1987).
With boronic acids forms cyclic boronates, useful in asymmetric syntheses; reviews: Acc. Chem. Res., 21, 294 (1988); Tetrahedron, 45, 1859 (1989). See Appendix 5.
Gefahrenhinweise (EU): H227
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