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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1784812Generated: October 30, 2026

Potassium Phosphate, Tribasic → HCID 178516433, compound

https://huagongshe.com/reaction/1784812

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPotassium Phosphate, TribasicHCID 62657—
Reactant4-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-YL)-1-(triisopropylsilyl)-1H-indoleHCID 2795574—
Reactant(6-Benzyloxy-pyridin-3-yl)-[3-bromo-5-(4-methoxy-benzyloxy)-phenyl]-amineHCID 68842505—
Reactant(6-benzyloxy-pyridin-3-yl)-[3-(4-methoxy-benzyloxy)-5-(1-triisopropylsilanyl-1H-indol-4-yl)-phenyl]-amineHCID 68843470—
CatalystHCID 178482708HCID 178482708—
Solvent1,4-DioxaneHCID 31275—
ProductHCID 178516433HCID 17851643357.1%

Reaction Conditions

Temperature120 °C

Reaction Steps

(6-benzyloxy-pyridin-3-yl)-[3-(4-methoxy-benzyloxy)-5-(1-triisopropylsilanyl-1H-indol-4-yl)-phenyl]-amine. To a tube purged with nitrogen containing (6-benzyloxy-pyridin-3-yl)-[3-bromo-5-(4-methoxy-benzyloxy)-phenyl]-amine (78 mg, 0.158 mmol), 4-(4,4,5,5-tetramethyl-[1,3,2]dioxaborolan-2-yl)-1-triisopropylsilanyl-1H-indole (63 mg, 0.158 mmol) and chloro(di-2-norbornylphosphino)(2′dimethylamino-1,1′-biphenyl-2-yl)palladium (II) (9.0 mg, 0.0158 mmol) in dioxane (2 mL) was added 2M aqueous K3PO4 (0.16 mL, 0.32 mmol). The tube was sealed and heated in a microwave reactor at 120° C. for an hour. The crude mixture was loaded directly to Celite®, and purified by chromatography to afford the -[3-hydroxy-5-(1H-indol-4-yl)-phenylamino]-pyridin-2-ol as a white solid (62 mg, 57.1%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07504401B2
Source datasetuspto-grants-2009_03
ORD IDord-0d8a05038e0b418682bb41b4051f3946
Source noteuspto-grants-2009_03