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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2297489Generated: October 29, 2026

Phosphorus oxychloride → 3-(4-Chloro-6-methoxy-phthalazin-1-yl)-propionic acid ethyl ester

https://huagongshe.com/reaction/2297489

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPhosphorus oxychlorideHCID 24813—
ReactantHCID 9903689HCID 9903689—
SolventAcetonitrileHCID 6342—
Product3-(4-Chloro-6-methoxy-phthalazin-1-yl)-propionic acid ethyl esterHCID 8675764884.8%

Reaction Steps

Operating analogously to example 114 starting from 3-(6-methoxy-4-oxo-3,4-dihydrophthalazin-1-yl)-propionic acid ethyl ester (552 mg, 2 mmoles), prepared as described in example 119, and POCl3 (1.12 ml, 12 mmoles) in acetonitrile (5 ml), 0.5 g of the title compound were obtained (yield: 84.8%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06492360B1
Source datasetuspto-grants-2002_12
ORD IDord-7917ac6332e04b6593bb82461c1bc122
Source noteuspto-grants-2002_12