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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1739009Generated: October 31, 2026

Lithium diisopropylamide → HCID 54112731, compound

https://huagongshe.com/reaction/1739009

Reaction equation

Participants

RoleNameHCIDCharge
ReactantLithium diisopropylamideHCID 2724682—
Reactantdiethyl ((1-(triphenylmethyl)-1H-imidazol-4-yl)methyl)phosphonateHCID 2763175—
ReactantHCID 21840013HCID 21840013—
SolventTetrahydrofuranHCID 8028—
ProductHCID 54112731HCID 54112731—

Reaction Conditions

Temperature-78 °C

Reaction Steps

The product from Step H is dissolved in THF and cooled to -78° C. under nitrogen. A solution of LDA in THF is added dropwise. The reaction is stirred at -78° C. for 1 h, then a solution of 4-formyl-1-phenyl-2-piperidinone from Step E is added, and the reaction warmed to room temperature overnight. The reaction is quenched with ammonium chloride solution, and extracted with ethyl acetate. The title compound is obtained after chromatography on silica gel

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05965578
Source datasetuspto-grants-1999_10
ORD IDord-987f982a24e1473386f854ce52af3a4a
Source noteuspto-grants-1999_10