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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 991996Generated: October 25, 2026

Diisopropylamine → 1,1-diethyl-2-phenylhydrazine

https://huagongshe.com/reaction/991996

Reaction equation

Participants

RoleNameHCIDCharge
ReactantDiisopropylamineHCID 7912—
ReactantBromobenzeneHCID 7961—
Reactant1,2-Diethylhydrazine dihydrochlorideHCID 24372—
ReactantBinap, (A+-)-HCID 634876—
ReactantSodium t-butoxideHCID 23676156—
Catalystpalladium(II) acetateHCID 167845—
Product1,1-diethyl-2-phenylhydrazineHCID 351227640%

Reaction Conditions

Temperature80 °C

Reaction Steps

1,2-Diethylhydrazine dihydrochloride (1.2 equiv., 0.6 mmol, 97 mg), bromobenzene (1.0 equiv., 0.5 mmol, 0.05 mL), Pd(OAc)2 (0.05 equiv, 0.025 mmol, 6 mg), BINAP (0.05 equiv., 0.025 mmol, 16 mg), and NaOtBu (3.8 equiv., 1.9 mmol, 183 mg) and diisopropylamine (2 mL) were added to a flame dried test tube which was capped with a septum and purged briefly with argon (˜1 min.) and then heated to 80° C. for 4 hours. The reaction was then cooled to room temperature, diluted with Et2O (2 mL), filtered through Celite and concentrated under vacuum. The crude mixture was purified by flash column chromatography (2% EtOAc/Hex) to give the title product as a viscous yellow oil (27 mg, 0.16 mmol, 33% yield).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06465693B2
Source datasetuspto-grants-2002_10
ORD IDord-665a10ff9f9843b9b05ca8d1783d610e
Source noteuspto-grants-2002_10