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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2297462Generated: October 31, 2026

Pyrrolidine → HCID 18381692, compound

https://huagongshe.com/reaction/2297462

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPyrrolidineHCID 31268—
Reactant4-Chloro-1-[(3,5-dichloropyridin-4-yl)methyl]-6-methoxyphthalazineHCID 18629210—
SolventDimethylformamideHCID 6228—
ProductHCID 18381692HCID 1838169271%

Reaction Steps

A solution of 4-chloro-(3,5-dichloro-pyridin-4-ylmethyl)-6-methoxy-phthalazine (1 g, 2.82 mmoles), prepared as described in example 45, in DMF (25 ml) was stirred under dry N2 at room temperature, and dropwise added with pyrrolidine. The mixture was heated at 100° C. for 20 hours, then concentrated and partitioned between water and CH2Cl2. The organic phase was washed with water, anhydrified and concentrated to give a solid which was crystallised from ethyl acetate (25 ml) to give 0.77 g of the title compound (yield: 71%). m.p.: 170-172° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06492360B1
Source datasetuspto-grants-2002_12
ORD IDord-9f83151530894e20af7531ec3c3e740e
Source noteuspto-grants-2002_12