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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1626477Generated: October 31, 2026

Oxalyl chloride → HCID 67288212, compound

https://huagongshe.com/reaction/1626477

Reaction equation

Participants

RoleNameHCIDCharge
ReactantOxalyl chlorideHCID 65578—
ReactantDiisopropylethylamineHCID 81531—
Reactant2-(3,5-Dichloropyridin-2-yl)ethan-1-amineHCID 23068289—
Reactant4-(6-Chloro-4-(ethoxycarbonyl)chroman-7-yloxy)benzoic acidHCID 58244395—
CatalystDimethylformamideHCID 6228—
SolventDichloromethaneHCID 6344—
ProductHCID 67288212HCID 6728821246%

Reaction Steps

4-(6-chloro-4-(ethoxycarbonyl)chroman-7-yloxy)benzoic acid (Preparation B; 60 mg, 0.16 mmol) was diluted with DCM (1 mL) followed by the addition of oxalyl chloride in DCM (2M) (88 μl, 0.18 mmol) and DMF (1 drop). After stirring for 10 minutes, 2-(3,5-dichloropyridin-2-yl)ethanamine (30 mg, 0.16 mmol) and DIEA (111 μl, 0.64 mmol) were added. The reaction was stirred for 2 hours. The reaction was loaded onto silica gel and eluted with a gradient of 5%-75% ethyl acetate/hexanes to yield the desired compound (40 mg, 0.073 mmol, 46% yield).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08785445B2
Source datasetuspto-grants-2014_07
ORD IDord-fb63532bc6604333905b2e81b47ff742
Source noteuspto-grants-2014_07