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ChemicalBook CAS DataBase List BOC-4-AMINOBENZYLALCOHOL
144072-29-7

BOC-4-AMINOBENZYLALCOHOL synthesis

10synthesis methods
-

Yield: 100%

Reaction Conditions:

with N-ethyl-N,N-diisopropylamine in tetrahydrofuranHeating / reflux;

Steps:

10
To a solution of p-amino-benzylalcohol (1 g, 8.12 mmol, 1 eq) in 80 mL of anhydrous THF were added DIEA (1.4 mL, 8.12 mmol, 1 eq) and BoC2O (1.9 mL, 8.12 mmol, 1 eq). The mixture was heated to reflux overnight, then cooled down and evaporated under vacuum. The residue was dissolved in EtOAc. The organic layer was washed with a 0.1 N HCl solution, dried over MgSO4, filtered and evaporated under vacuum. The crude product was purified by column chromatography on silica gel (Hex-EtOAc, 1:1, v/v) to give 1.85 g of product (quantitative yield): 1H NMR δ 0.1.49 (9H, s), 2.17 (IH, s), 4.53 (2H5 s), 6.83 (IH, s), 7.19 (2H, d, J = 8.5 Hz), 7.28 (2H, d, J = 8.2 Hz); 13 C NMR δ 28.28, 64.54, 80.37, 118.49, 127.59, 135.31, 137.46, 152.72.

References:

ENZON PHARMACEUTICALS, INC. WO2008/34124, 2008, A2 Location in patent:Page/Page column 72-73

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