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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1187038Generated: November 3, 2026

Hydrochloric Acid → 5-fluoro-1-(piperazin-1-ylmethyl)-2,3-dihydro-1H-indene-4-carbonitrile

https://huagongshe.com/reaction/1187038

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
Reactant1,1-dimethylethyl-4-[(4-cyano-5-fluoro-2,3-dihydro-1H-inden-1-yl)methyl]piperazine-1-carboxylateHCID 86647316—
SolventDichloromethaneHCID 6344—
Product5-fluoro-1-(piperazin-1-ylmethyl)-2,3-dihydro-1H-indene-4-carbonitrileHCID 59568675—

Reaction Steps

To a solution 1,1-dimethylethyl-4-[(4-cyano-5-fluoro-2,3-dihydro-1H-inden-1-yl)methyl]piperazine-1-carboxylate (0.060 g) in DCM (2 mL) was added 4N HCl (2 mL) at RT. The mixture was allowed to stir at RT for 2 hours. The solvents were removed on a rotary evaporator, and the residue was redissolved in aq NaHCO3 solution. The solution was extracted with IPA-CHCl3 (3:1) twice (50 mL each). The extractions were combined, dried over sodium sulfate, and concentrated to give 5-fluoro-1-(piperazin-1-ylmethyl)-2,3-dihydro-1H-indene-4-carbonitrile. LC-MS (IE, m/z): 260 [M+1]+.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08673920B2
Source datasetuspto-grants-2014_03
ORD IDord-22b75f2da26148fc8fddda87d6504608
Source noteuspto-grants-2014_03