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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 404824Generated: October 30, 2026

Water → HCID 57708304, compound

https://huagongshe.com/reaction/404824

Reaction equation

Participants

RoleNameHCIDCharge
ReactantWaterHCID 962—
ReactantCesium carbonateHCID 10796—
Reactant2,3-Dihydro-1,4-benzodioxin-6-olHCID 9115273—
ReactantN2-(6-chloropyrimidin-4-yl)pyridine-2,6-diamineHCID 57708264—
CatalystCopper(1+) iodide; Copper(I) iodide; Cuprous iodide; Cuprous iodide (CuI)HCID 24350—
SolventN-methyl-2-pyrrolidoneHCID 13387—
ProductHCID 57708304HCID 5770830429%

Reaction Conditions

Temperature100 °C

Reaction Steps

A stirred mixture of 2,3-dihydrobenzo[b][1,4]dioxin-6-ol (0.137 g, 0.90 mmol), Cs2CO3 (0.734 g, 2.25 mmol), CuI (0.02 g, 10% w/w), and N2-(6-chloropyrimidin-4-yl)pyridine-2,6-diamine (0.29 g, 0.90 mmol) in NMP (1 mL) was heated at 100° C. for 16 h. The reaction mixture was cooled to rt and slowly added to demineralised water. The solid that precipitated was collected by filtration and was further purified by column chromatography (SiO2, 60-120, pet ether/ethyl acetate, 7/3) to give N2-(6-(2,3-dihydrobenzo[b][1,4]dioxin-6-yloxy)pyrimidin-4-yl)pyridine-2,6-diamine (0.088 g, 29%) as yellow solid.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08748606B2
Source datasetuspto-grants-2014_06
ORD IDord-de91d0e38ff247608c203e059b6904bb
Source noteuspto-grants-2014_06