References
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- 1H-NMR (D2O, 300 MHz). α -methyl-galactopyranoside (diastereoisomeric mixture of protected substrate): δ: 1.42 and 1.58 (3H, s, CH3), 3.22 and 3.28 (3H, s, OCH3), 3.35 (3H, s, OCH3), 4.35 (2H, m, 2H-6), 4.80 (1H, m, H-4), 5.27 (1H, d, 6.5 Hz, H-1); 1H-NMR (CDCl3, 300 MHz). 1,2-hydroxy-2-phenyl-ethane (diastereoisomeric mixture of protected substrate): δ: 1.65 and 1.70 (3H, s, CH3), 3.35 and 3.40 (3H, s, OCH3), 3.75, 4.30 and 3.85, 4.45 (2H, ABX system), 5.10 and 5.25 (1H, ABX system, 7.40 (5H, Ph). Methyl quinate (diastereoisomeric mixture of protected substrate): δ: 1.59 and 1.60 (3H, s, CH3), 2.10, 2.35 and 2.05, 2.50 (2x2H, ABX system, 2H-2 and 2H-6), 3.26 and 3.41 (3H, s, OCH3), 3.55 (1H, m, H-5), 3.72 and 3.74 (3H, s, COOCH3–1), 4.60 (1H, m, H-3), 4.75 (1H, m, H-4), 5.25 (2H, bs, OH-1, OH-5).