Potassium Phosphate, Tribasic → HCID 86684383, compound

Participants

Role	Name	HCID	Charge
Reactant	Potassium Phosphate, Tribasic	HCID 62657	—
Reactant	Sodium Acetate	HCID 517045	—
Reactant	(2-(1-oxo-3,4,6,7,8,9-hexahydropyrazino[1,2-a]indol-2(1H)-yl)-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridin-3-yl)methyl acetate	HCID 86684143	—
Reactant	HCID 86684384	HCID 86684384	—
Catalyst	Bis(cyclopenta-1,4-dien-1-yl(diphenyl)phosphane);dichloropalladium;iron(2+)	HCID 178418228	—
Solvent	Water	HCID 962	—
Solvent	Acetonitrile	HCID 6342	—
Product	HCID 86684383	HCID 86684383	82%

Reaction Conditions

Temperature	100 °C

Reaction Steps

A sealed tube equipped with a magnetic stirrer was charged with 205d (213 mg, 0.50 mmol), 3-(acetoxymethyl)-2-(1-oxo-3,4,6,7,8,9-hexahydropyrazino[1,2-a]indol-2(1H)-yl)pyridin-4-ylboronic acid 113i (192 mg, 0.50 mmol), Pd(dppf)Cl2 (41 mg, 0.050 mmol), sodium acetate (82 mg, 1.0 mmol), K3PO4 (212 mg, 1.0 mmol), acetonitrile (10 mL), and water (0.5 mL). After three cycles of vacuum/argon flush, the mixture was heated at 100° C. for 2 h. It was then filtered and the filtrate was evaporated in vacuo. The residue was purified by silica-gel column chromatography eluting with 25:1 dichloromethane/methanol to afford 205e (280 mg, 82%) as a yellow solid. MS-ESI: [M+H]+ 683.3

Provenance & Evidence

DOI	10.6084/m9.figshare.5104873.v1
Patent number	US09238655B2
Source dataset	uspto-grants-2016_01
ORD ID	ord-a028761f480d44fcb8ae20fd42811e46
Source note	uspto-grants-2016_01