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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1759622Generated: October 28, 2026

Diisopropylamine → HCID 13057043, compound

https://huagongshe.com/reaction/1759622

Reaction equation

Participants

RoleNameHCIDCharge
ReactantDiisopropylamineHCID 7912—
Reactant4-FluorobenzaldehydeHCID 68023—
ReactantTert-butyl 3-oxopiperazine-1-carboxylateHCID 3157178—
ReactantButyllithiumHCID 178418339—
SolventWaterHCID 962—
SolventTetrahydrofuranHCID 8028—
SolventHexaneHCID 8058—
ProductHCID 13057043HCID 13057043—

Reaction Conditions

Temperature0 °C

Reaction Steps

To a solution of diisopropylamine (3.1 ml, 22 mmole) and dry THF (5 ml) at 0° C. under argon is added dropwise a hexane solution of n-butyllithium (13.8 ml, 22 mmole). After 3/4 hour, a solution of 2 (2.0 g, 10 mmole) in 75 ml of dry THF is added dropwise and stirred at 0° C. for 3 hours and 4-fluoro-benzaldehyde (13.6 g, 11 mmole) added dropwise. The reaction mixture was stirred at room temperature for 68 hours, poured into water, and extracted into ether. The extract was washed with brine, dried over MgSO4, and concentrated under reduced pressure, and the residue recrystallized from ethanol to give 35. M.p. 219° C. (dec.)

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04341698
Source datasetuspto-grants-1982_07
ORD IDord-70c4bead79c847c8b88c95e44bbdd04a
Source noteuspto-grants-1982_07