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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1672739Generated: October 29, 2026

Lithium diisopropylamide → HCID 178515502, compound

https://huagongshe.com/reaction/1672739

Reaction equation

Participants

RoleNameHCIDCharge
ReactantLithium diisopropylamideHCID 2724682—
Reactant4-Bromo-1-(bromomethyl)-2-chlorobenzeneHCID 21914486—
ReactantHCID 178516221HCID 178516221—
SolventTetrahydrofuranHCID 8028—
ProductHCID 178515502HCID 178515502—

Reaction Steps

To a solution of cis-1-(4-fluoro-cyclohexyl)-pyrrolidin-2-one (Preparation 26) (190 mg, 1.03 mmol) in 5 mL dry THF, add 1.29 mL of 2M LDA (2.5 eq.) in THF dropwise at −78° C. Then, add 16 mg of 4-Bromo-1-bromomethyl-2-chloro-benzene (2 eq) at −78° C. Allow the resulting solution to stand at room temp for overnight. Quench the mixture with saturated aqueous NH4Cl and extract with CH2Cl2. Wash the organic layer with water, brine, dry over Na2SO4, filter and concentrate. Purify the crude material by chromatography to afford the title compound: mass spectrum (m/z): 389 (M+1).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07998999B2
Source datasetuspto-grants-2011_08
ORD IDord-cb5c3a543dd24ceba7aeb9e3e54c65f9
Source noteuspto-grants-2011_08