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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1672364Generated: October 30, 2026

Dimethylformamide → HCID 86633781, compound

https://huagongshe.com/reaction/1672364

Reaction equation

Participants

RoleNameHCIDCharge
ReactantDimethylformamideHCID 6228—
ReactantOxalyl chlorideHCID 65578—
ReactantHCID 86633782HCID 86633782—
Solvent1,2-DichloroethaneHCID 11—
ProductHCID 86633781HCID 86633781115.2%

Reaction Conditions

Temperature62.5 °C

Reaction Steps

To a slurry of 7-(4-methoxy-phenyl)-isoquinoline-5-sulfonic acid (12.13 g, 38.5 mmol) in 1,2-dichloroethane (200 mL) and DMF (2.99 mL, 38.5 mmol) add oxalyl chloride (26.8 mL, 308 mmol) dropwise. Mechanically stir the slurry under nitrogen atmosphere while heating at 60-65° C. for 4 hr. Cool the slurry to −10° C. Wait for 30 min then filter. Wash the yellow solid with 20% ether/dichloromethane and dry under a nitrogen atmosphere affording the title compound (14.8 g) as a yellow powder.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07998977B2
Source datasetuspto-grants-2011_08
ORD IDord-4ca403d36c874b9698c4e07e1ad53c26
Source noteuspto-grants-2011_08