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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 535913Generated: October 29, 2026

Benzylethanolamine → HCID 178499151, compound

https://huagongshe.com/reaction/535913

Reaction equation

Participants

RoleNameHCIDCharge
ReactantBenzylethanolamineHCID 4348—
ReactantSodium SulfateHCID 24436—
ReactantSodium triacetoxyborohydrideHCID 5049666—
ReactantMethyl 5-formyl-1H-imidazole-4-carboxylateHCID 178499152—
SolventTetrahydrofuranHCID 8028—
ProductHCID 178499151HCID 17849915198%

Reaction Steps

To a stirred suspension of Intermediate 1C (3.20 g, 20.76 mmol) in dry THF (180 mL) was added anhydrous Na2SO4 (14.48 g, 192 mmol) and N-benzylethanolamine (3.70 g, 24.47 mmol). The resulting mixture was stirred at room temperature under nitrogen for 1 hour. Sodium triacetoxyborohydride (6.37 g, 28.5 mmol) was added portion-wise and the resulting mixture was stirred under nitrogen for 48 hours. The resulting mixture was quenched with water and neutralized with saturated NaHCO3 solution. The mixture was extracted with DCM and the combined organic extracts were dried over anhydrous Na2SO4, filtered and concentrated. The crude mixture was purified using normal phase chromatography eluting with a 10-30% methanol/DCM gradient to provide Intermediate 1D as a white solid (5.80 g, 98%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08859538B2
Source datasetuspto-grants-2014_10
ORD IDord-3fca3f363a1e4466a5427b35c4124ebd
Source noteuspto-grants-2014_10