Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1817494Generated: October 29, 2026

Bromocyclopentane → HCID 69064639, compound

https://huagongshe.com/reaction/1817494

Reaction equation

Participants

RoleNameHCIDCharge
ReactantBromocyclopentaneHCID 8728—
ReactantSodium hydrideHCID 24758—
ReactantHCID 178519713HCID 178519713—
SolventDimethylformamideHCID 6228—
ProductHCID 69064639HCID 6906463973.3%

Reaction Conditions

Temperature50 °C

Reaction Steps

To a solution of [4-(benzyloxy)phenyl](7-trifluoromethyl-1H-indazol-3-yl)methanone (0.372 g, 0.94 mmol) in 3 mL DMF was added in one portion sodium hydride (0.044 g, 1.1 mmol, 60% in oil). After the gas evolution ceased, cyclopentyl bromide (0.118 mL, 1.1 mmol) was added and the reaction was stirred at ambient to 50° C. for 24 hours. The cool reaction mixture was partitioned with EtOAc and 1 N HCl. The organic phase was washed with brine and dried (Na2SO4). The solvent was removed in vacuo. The resulting residue was purified by flash chromatography (silica gel, hexane-EtOAc, 9:1) to give 0.320 g of the title compound as a yellow solid.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07598286B2
Source datasetuspto-grants-2009_10
ORD IDord-f7e40c01fad04fbd880ab9edc6b45643
Source noteuspto-grants-2009_10