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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2182263Generated: October 30, 2026

Toluene → Ammonia

https://huagongshe.com/reaction/2182263

Reaction equation

Participants

RoleNameHCIDCharge
ReactantTolueneHCID 1140—
Reactant3-BromopyridineHCID 12286—
ReactantTert-butyl 1,4-diazepane-1-carboxylateHCID 2756058—
ReactantPotassium tert-butoxideHCID 23665647—
CatalystHCID 178418397HCID 178418397—
SolventWaterHCID 962—
ProductAmmoniaHCID 222—
Product1-(Pyridin-3-yl)-4-tert-butoxycarbonylhomopiperazineHCID 10802494—

Reaction Conditions

Temperature80 °C

Reaction Steps

A mixture of 3-bromopyridine (3.95 g, 25.0 mmol), 1-tert-butoxycarbonylhomopiperazine (5.0 g, 25.0 mmol), tetrakis(triphenylphosphine)palladium(0) (145 mg, 0.125 mmol), potassium tert-butoxide (6.1 g, 50.0 mmol) and anhydrous toluene (75 ml) was stirred at 80° C. for 4 h. Water (100 ml) was added and the mixture was extracted three times with ethyl acetate (50 ml). Chromatography on silica gel with dichloromethane, methanol and conc. ammonia (89:10:1) gave the title compound as an oil. Yield 0.92 g, 13%.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06897219B2
Source datasetuspto-grants-2005_05
ORD IDord-437a31afd4fc4d398dbcb2ec4b63e7bb
Source noteuspto-grants-2005_05