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HuagongsheHuagongshe Chemie-Druckbericht · Nur für Forschungszwecke
HRID 1906987Erstellt: 26. Oktober 2026

Benzyl Bromide → benzyl (S)-3-(3,4-dihydroxyphenyl)-2-methylalaninate

https://huagongshe.com/reaction/1906987

Reaktionsgleichung

Beteiligte Stoffe

RolleNameHCIDEinwaage
EduktBenzyl BromideHCID 7498—
EduktMethyldopaHCID 38853—
EduktLithium BromideHCID 82050—
LösungsmittelN-methyl-2-pyrrolidoneHCID 13387—
Produktbenzyl (S)-3-(3,4-dihydroxyphenyl)-2-methylalaninateHCID 1243968985%

Reaktionsbedingungen

Temperatur25 °C

Reaktionsschritte

In a manner similar to that described in Example I, 1.05 grams (0.005 mole) of α-methyldopa, 0.88 gram (0.010 mole) of lithium bromide, 0.5 gram of powdered 4A sieves, 0.98 gram (0.0057 mole) of benzyl bromide and 5.0 grams of N-methylpyrrolidinone were stirred for 65 hours at 25° C. At the end of this period, high pressure liquid chromatographic assay showed an 85 percent yield of the desired benzyl (S)-3-(3,4-dihydroxyphenyl)-2-methylalaninate product.

Herkunft & Nachweise

DOI10.6084/m9.figshare.5104873.v1
PatentnummerUS04654433
Quelldatensatzuspto-grants-1987_03
ORD IDord-238cc03c63e6419c94662f644024e996
Quellennotizuspto-grants-1987_03