Question

9-97 a9 (a) Identify the carboxylic acids you would use in the Hell-Volhard-Zelinsky approach racemic leucine, tyrosine, and valine. (b) Propose Gabriel syntheses of racemic methioni aspartic acid, and glutamic acid. HOOD Solved Exercise 26-7 Working with the Concepts: Practicing Variants of the Gabriel Amino Acid Synthesis diethyl N-acetyl-2-aminopropanedioate (acetami A variation of the Gabriel synthesis uses domalonic ester), A. Propose a synthesis of racemic serine from this reagent. NH3 CO2,CH2CH3 HOCH2CHCOO C2CH2CH3 N H brA Racemic serine

Answer 1

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Fo vodune THN POT3/2 encels N H3 Mechanism d me tuo Qmino au Sntme's voline Semiuor to thet of Leuc'ne Gabrel Syiness(for methionene .co2et CH ~сo,ся 1sf GH (detheg brmacetate) Potassium Phiralmrde CO2et rc tep 4th CO2 NaoH - (Dn COOM Methionine

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