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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1677489Generated: October 30, 2026

Diethyl Ether → HCID 44199845, compound

https://huagongshe.com/reaction/1677489

Reaction equation

Participants

RoleNameHCIDCharge
ReactantDiethyl EtherHCID 3283—
ReactantDiethylaluminum chlorideHCID 7277—
Reactant2-bromo-5H-pyrrolo[2,3-b]pyrazineHCID 25067308—
ReactantHCID 59540922HCID 59540922—
SolventTolueneHCID 1140—
SolventDichloromethaneHCID 6344—
ProductHCID 44199845HCID 4419984518%

Reaction Conditions

Temperature90 °C

Reaction Steps

A solution of 2-bromo-5H-pyrrolo[2,3-b]pyrazine (531 mg, 2.68 mmol) and 4-benzyloxy-1-methyl-cyclohexanecarbonyl chloride (2.15 g, 8.05 mmol) in anhydrous Toluene (16 ml) was treated with Et2AlCl (1M in Hexanes, 5.36 ml, 5.36 mmol), dropwise. The reaction mixture was stirred at 90° C. for 16 hours. The reaction mixture was cooled to room temperature, quenched with sat. NaHCO3, and extracted with ethyl acetate (3×). The organic layers were collected, dried over MgSO4, filtered, and concentrated giving a dark brown oil. Silica gel chromatography using 0-50% Et2O in DCM as eluant provided 205 mg (18%) of (4-benzyloxy-1-methyl-cyclohexyl)-(2-bromo-5H-pyrrolo[2,3-b]pyrazin-7-yl)-methanone as a pale yellow solid. M−H=426.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08008298B2
Source datasetuspto-grants-2011_08
ORD IDord-3038654809a94f5db46900bd3de23878
Source noteuspto-grants-2011_08