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96854-24-9

N-(Methoxycarbonyl)-L-serine Methyl Ester synthesis

2synthesis methods
-

Yield:96854-24-9 75.39 g (92%)

Reaction Conditions:

with sodium hydroxide in water;

Steps:

1 EXAMPLE 1

EXAMPLE 1 To a solution of 72.03 g L-serine-methylester hydrochloride in 400 ml of water were added at 0° C. 49.5 g of methyl chloroformate. The pH was kept at 6-7 by adding a 40% aqueous solution of sodium hydroxide. After 2 1/2 h at 0° C. the mixture was extracted with 6 portions of ethyl acetate, the combined extracts were dried and evaporated to give 75.39 g (92%) of pure methyl 3-hydroxy-(S)-2-methoxycarbonylamino-propionate. IR (neat): 3380 m (NH, OH), 1720s, br. (C=O), 1535 s (amnide II). MS (El): 178/20 (M+H+).

References:

US6130348,2000,A