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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 216299Generated: October 26, 2026

Ethyl bromoacetate → HCID 54030181, compound

https://huagongshe.com/reaction/216299

Reaction equation

Participants

RoleNameHCIDCharge
ReactantEthyl bromoacetateHCID 7748—
ReactantTriethylamineHCID 8471—
Reactanttert-butyl (2S)-2-amino-3-methylbutanoate hydrochlorideHCID 12490702—
SolventDimethylformamideHCID 6228—
ProductHCID 54030181HCID 5403018178%

Reaction Steps

To a solution of (L)-valine tert-butyl ester hydrochloride (4.94 g, 23.6 mmol) in N,N-dimethylformamide (55 mL) was added triethylamine (3.28 mL, 1 equivalent), and the mixture was stirred for 1 h. The reaction was filtered to remove solid salts, and the filtrate was treated with triethylamine (9.85 mL, 3 equivalents) and ethyl bromoacetate (7.84 mL, 3 equivalents), and the reaction was stirred for 3 h at 25° C. The reaction was partitioned between ethyl acetate and water, and the organic was washed with brine and dried over MgSO4, filtered and evaporated to give 4.48 g (78%) of the product which was used without further purification.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08193227B2
Source datasetuspto-grants-2012_06
ORD IDord-3363d108b72745faaa2754794625ecbd
Source noteuspto-grants-2012_06