P-Anisidine → (4-Methoxy-phenyl)-{4-[4-(2-trimethylsilanyl-ethoxymethyl)-4,7-dihydro-1-thia-4,5-diaza-cyclopenta[a]pentalen-6-yl]-phenyl}-amine

Participants

Role	Name	HCID	Charge
Reactant	P-Anisidine	HCID 7732	—
Reactant	Cesium carbonate	HCID 10796	—
Reactant	1,1'-(9,9-Dimethyl-9H-xanthene-4,5-diyl)bis(1,1-diphenylphosphine)	HCID 636044	—
Reactant	6-(4-Bromo-phenyl)-4-(2-trimethylsilanyl-ethoxymethyl)-4,7-dihydro-1-thia-4,5-diaza-cyclopenta[a]pentalene	HCID 86699195	—
Catalyst	palladium(II) acetate	HCID 167845	—
Solvent	1,4-Dioxane	HCID 31275	—
Product	(4-Methoxy-phenyl)-{4-[4-(2-trimethylsilanyl-ethoxymethyl)-4,7-dihydro-1-thia-4,5-diaza-cyclopenta[a]pentalen-6-yl]-phenyl}-amine	HCID 86699200	60%

Reaction Conditions

Temperature	100 °C

Reaction Steps

A mixture of the corresponding intermediate 6-(4-Bromo-phenyl)-4-(2-trimethylsilanyl-ethoxymethyl)-4,7-dihydro-1-thia-4,5-diaza-cyclopenta[a]pentalene (0.45 g, 1.0 mmol), 4-Methoxy-phenylamine (0.31 g, 2.5 mmol), Cs2CO3 (2 M, 3.0 mL), Xantphos (58 mg, 0.1 mmol) and Pd(OAc)2 (22 mg, 0.1 mmol) in dioxane (5 mL) was heated at 100° C. for 8 hr. The solution was cooled to room temperature and extracted with ethyl acetate. The target product was purified by gravity column chromatography (20% EtOAc in hexane) to give (4-Methoxy-phenyl)-{4-[4-(2-trimethylsilanyl-ethoxymethyl)-4,7-dihydro-1-thia-4,5-diaza-cyclopenta[a]pentalen-6-yl]-phenyl}-amine as brown solid in 60% yield.

Provenance & Evidence

DOI	10.6084/m9.figshare.5104873.v1
Patent number	US08853207B2
Source dataset	uspto-grants-2014_10
ORD ID	ord-e48d43c6e03445a49f6248b104e1bd1b
Source note	uspto-grants-2014_10