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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 634358Generated: October 30, 2026

Cesium carbonate → 3-(1-Hydroxyethyl)-4-(6-methylpyridin-3-yl)-1H-isochromen-1-one

https://huagongshe.com/reaction/634358

Reaction equation

Participants

RoleNameHCIDCharge
ReactantCesium carbonateHCID 10796—
Reactant2-Methylpyridine-5-boronic acidHCID 2763081—
Reactant4-Bromo-3-(1-hydroxyethyl)-1H-isochromen-1-oneHCID 118131255—
CatalystHCID 178418397HCID 178418397—
Product3-(1-Hydroxyethyl)-4-(6-methylpyridin-3-yl)-1H-isochromen-1-oneHCID 11813110829%

Reaction Steps

The title compound was made in a similar way as that of the intermediate B1 using 4-bromo-3-(1-hydroxyethyl)-1H-isochromen-1-one (Intermediate A2, 0.55 g, 2.04 mmol), 6-methylpyridin-3-ylboronic acid (0.550 g, 2.0 mmol), Pd(PPh3)4 (0.118 g, 0.102 mmol) and Cs2CO3 (1.06 g, 3.27 mmol) to afford the title compound (0.163 g, 28%)

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09321776B2
Source datasetuspto-grants-2016_04
ORD IDord-a687e421b1de4a43a025f66b39006fe0
Source noteuspto-grants-2016_04