Benzyl Alcohol → HCID 15042555, compound

Participants

Reaction Steps

3-Carbomethoxy-3-methylbutanoic acid [Bull. Soc. Chim. Fr., 828 (1965), 7.85 g, 0.049 mol] was reacted with diphenylphosphorylazide and triethylamine as described in Example 71. After heating the toluene solution for 1.5 h, benzyl alcohol (8 g) was added directly to the reaction mixture and heating at reflux was continued for 20 h. Work-up and purification as in Example 71 gave methyl 3-benzyloxycarbonylamino-2,2-dimethylpropionate. NMR (300 MHz, CDCl3): 1.2 (s, 6H), 3.3 (d, 2H), 3.68 (s, 3H), 5.1 (s, 2H), 5.22 (m, 1H). A sample of the methyl ester (6.21 g, 0.023 mol) was saponified with 3.1 g (0.78 mol) of NaOH in 100 mL ethanol/l0 mL H2O at room temperature for 48 h. Work-up as in Example 71 gave the desired product as a liquid. NMR (300 MHz, CDCl 3): 1.23 (s. 6H), 3.32 (d, 2H), 5.10 (s, 2H), 5.27 (m, 1H).

Provenance & Evidence