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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1600930Generated: October 30, 2026

Sodium Carbonate → HCID 21830685, compound

https://huagongshe.com/reaction/1600930

Reaction equation

Participants

RoleNameHCIDCharge
ReactantSodium CarbonateHCID 10340—
ReactantHydrofluoric AcidHCID 14917—
Reactant3,5-Dichlorophenylboronic acidHCID 2734331—
ReactantHCID 21717163HCID 21717163—
CatalystHCID 178418397HCID 178418397—
SolventEthanolHCID 702—
SolventTolueneHCID 1140—
SolventAcetonitrileHCID 6342—
ProductHCID 21830685HCID 2183068578.9%

Reaction Conditions

Temperature120 °C

Reaction Steps

Prepared according to the method described in Example 33a) from toluene (3 ml), aqueous sodium carbonate (2 M, 1.4 ml), (±)-3-(4-(4-bromophenoxy)-3-(tert-butyldimethylsilyloxy)butyl)pyridine (0.67 g), ethanol (0.8 ml), 3,5-dichlorobenzeneboronic acid (0.30 g) and tetrakis(triphenylphosphine)palladium(0) (73 mg) with heating at 120° C. for 6 hours. The residue obtained after work up was deprotected as in Example 34e) using hydrofluoric acid (40%, 4 ml) in acetonitrile (30 ml). The residue obtained after work up was purified by column chromatography over silica eluting with dichloromethane then ether then ethyl acetate to give an oil (0.47 g). This was recrystallised from ether to give the title compound as a white solid (0.21 g).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05977105
Source datasetuspto-grants-1999_11
ORD IDord-b1edf844b37a4003819bdbce61b969ef
Source noteuspto-grants-1999_11