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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 524941Generated: October 29, 2026

Cesium carbonate → HCID 86720999, compound

https://huagongshe.com/reaction/524941

Reaction equation

Participants

RoleNameHCIDCharge
ReactantCesium carbonateHCID 10796—
ReactantBenzophenone imineHCID 136809—
Reactant1,1'-(9,9-Dimethyl-9H-xanthene-4,5-diyl)bis(1,1-diphenylphosphine)HCID 636044—
ReactantHCID 58053580HCID 58053580—
CatalystBis(dibenzylideneacetone)palladiumHCID 9811564—
Solvent1,4-DioxaneHCID 31275—
ProductHCID 86720999HCID 8672099969.3%

Reaction Conditions

Temperature100 °C

Reaction Steps

Pd2(dba)3 (33.70 mg, 0.03680 mmol) and Xantphos (42.58 mg, 0.07359 mmol) were added to a sealed tube containing tert-butyl N-(5-iodo-4-methoxy-2-pyridyl)-N-methyl-carbamate (268 mg, 0.7359 mmol), diphenylmethanimine (173.4 mg, 160.6 μL, 0.9567 mmol) and Cs2CO3 (719.4 mg, 2.208 mmol) in dioxane (2.5 mL). The reaction was placed under an atmosphere of nitrogen and heated at 100° C. for 4 hours. At RT, the reaction mixture was filtered through celite and the filtrate concentrated in vacuo. The residue was purified by column chromatography (ISCO Companion, 40 g column, eluting with 0 to 30% EtOAc/Petroleum Ether, loaded in DCM) to give tert-butyl (5-((diphenylmethylene)amino)-4-methoxypyridin-2-yl)(methyl)carbamate as a yellow solid (213 mg, 69% Yield). MS (ES+) 418.2.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09340546B2
Source datasetuspto-grants-2016_05
ORD IDord-850e54f3b4204319adf7693692a72315
Source noteuspto-grants-2016_05