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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2277669Generated: October 30, 2026

Toluene → HCID 178455458, compound

https://huagongshe.com/reaction/2277669

Reaction equation

Participants

RoleNameHCIDCharge
ReactantTolueneHCID 1140—
ReactantAmmonium ChlorideHCID 25517—
Reactant3,5-DibromopyridineHCID 69369—
Reactant(S)-2-(((tert-Butyldimethylsilyl)oxy)methyl)pyrrolidineHCID 11275950—
ReactantSodium t-butoxideHCID 23676156—
CatalystBinap, (A+-)-HCID 634876—
CatalystBis(dibenzylideneacetone)palladiumHCID 9811564—
ProductHCID 178455458HCID 17845545853%

Reaction Conditions

Temperature85 °C

Reaction Steps

To a solution of crude (S)-2-((tert-butyldimethylsilyloxy)methyl)pyrrolidine (0.455 g, 2.11 mmol) in toluene (20 mL) were added Pd2(dba)3 (0.039 g, 0.042 mmol) and rac-BINAP (0.066 g, 0.106 mmol). The solution was purged with argon and heated to 85° C. for 10 min. After cooling to room temperature, sodium tert-butoxide (0.406 g, 4.22 mmol) and 3,5-dibromopyridine (0.5 g, 2.11 mmol) were added and the reaction mixture was then heated at 85° C. overnight. The mixture was poured into sat NH4Cl (20 mL) and the aqueous layer was extracted with DCM (2×25 mL). Combined organics were washed with brine, dried over Na2SO4, filtered and evaporated to dryness. The residue was purified by silica gel flash chromatography eluting with a 0 to 5% MeOH-DCM gradient to give the title compound (0.412 g, 53%) as a yellow oil. MS: 371.0, 372.9 (M+H+).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09133158B2
Source datasetuspto-grants-2015_09
ORD IDord-d2dc6d89393142b6a0b1b1bb1d5236b0
Source noteuspto-grants-2015_09