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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1464368Generated: October 25, 2026

Benzyl Bromide → D-leucic acid benzyl ester

https://huagongshe.com/reaction/1464368

Reaction equation

Participants

RoleNameHCIDCharge
ReactantBenzyl BromideHCID 7498—
ReactantTriethylamineHCID 8471—
Reactant(R)-2-hydroxy-4-methylpentanoic acidHCID 439960—
SolventEthyl AcetateHCID 8857—
ProductD-leucic acid benzyl esterHCID 999110062.3%

Reaction Steps

278 g of benzyl bromide were added to a stirred solution of 215 g of D-leucic acid and 246 g of triethylamine in 2.5 l of ethy acetate. The mixture was then heated under reflux for 5 hours, cooled and filtered to remove triethylamine hydrobromide. The filtrate was washed twice with 2M hydrochloric acid, water, saturated sodium bicarbonate solution and then saturated sodium chloride solution. The organic extract was dried over magnesium sulfate and evaporated to give 225 g of D-leucic acid benzyl ester as a yellow liquid.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05304549
Source datasetuspto-grants-1994_04
ORD IDord-2a65db725f7844339a3a8ea47ca58912
Source noteuspto-grants-1994_04