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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 863848Generated: October 30, 2026

Imidazole → t-Butyldimethylsilyloxyserine methyl ester

https://huagongshe.com/reaction/863848

Reaction equation

Participants

RoleNameHCIDCharge
ReactantImidazoleHCID 795—
ReactantDimethylformamideHCID 6228—
Reactanttert-Butyldimethylsilyl chlorideHCID 28928—
ReactantL-Serine, methyl ester, hydrochloride (1:1)HCID 2723730—
SolventDiethyl EtherHCID 3283—
Productt-Butyldimethylsilyloxyserine methyl esterHCID 22856314—

Reaction Conditions

Temperature25 °C

Reaction Steps

Serine methyl ester hydrochloride [HOCH2CH(NH2)CO2CH3 ·HCl] (18.7 g; 0.120 mol) and imidazole (30 g; 0.44 mol) are dissolved in DMF (100 ml) and cooled to 0° C. t-Butyldimethylsilyl chloride (19.5 g; 0.13 mol) is added and the reaction allowed to stir 15 hours at 25° C. The reaction is then diluted with ether (2 L), washed with water (4×500 ml), dried (MgSO4) and concentrated to yield t-butyldimethylsilyloxyserine methyl ester as an oil which is used directly in Step B.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05561143
Source datasetuspto-grants-1996_10
ORD IDord-6214c12aa284476c8675703628a13572
Source noteuspto-grants-1996_10