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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 729807Generated: October 26, 2026

Diethyl Ether → HCID 67061210, compound

https://huagongshe.com/reaction/729807

Reaction equation

Participants

RoleNameHCIDCharge
ReactantDiethyl EtherHCID 3283—
ReactantTetrahydrofuranHCID 8028—
ReactantAmmonium ChlorideHCID 25517—
Reactant2-Amino-5-bromo-3-pyridinecarbaldehydeHCID 24213792—
ReactantHCID 178418573HCID 178418573—
ProductHCID 67061210HCID 6706121050%

Reaction Steps

To a solution of 2-Amino-5-bromo-pyridine-3-carbaldehyde (632 mg, 3.14 mmol) in anhydrous THF (20 mL) was methylmagnesium bromide 3M in diethyl ether (6.06 mL, 34.8 mmol) is added at −50° C. The reaction mixture was warmed to room temperature and stirred overnight. Saturated aqueous ammonium chloride was added to the mixture (15 mL), the organic layer separated and the aqueous phase extracted with EtOAc (3×20 mL). Organic layers were dried over sodium sulfate, filtered and concentrated. The crude residue was purified by flash silica chromatography with a gradient of ethyl acetate in hexanes. (2-Amino-5-bromo-phenyl)-cyclopentyl-methanol (425.9 mg, 50% yield) was obtained as a yellow powder. MS: m/z 271/273[MH+].

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07582637B2
Source datasetuspto-grants-2009_09
ORD IDord-8b9fe0dd2f764763a09306f13cfa9a3c
Source noteuspto-grants-2009_09