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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2268932Generated: November 1, 2026

4-(2-Propyn-1-yl)morpholine → 1-(3,5-Dichloro-pyridin-4-ylmethyl)-6-methoxy-5-(3-morpholin-4-yl-prop-1-ynyl)-phthalazine

https://huagongshe.com/reaction/2268932

Reaction equation

Participants

RoleNameHCIDCharge
Reactant4-(2-Propyn-1-yl)morpholineHCID 412941—
ReactantTrifluoro-methanesulfonic acid 1-(3,5-dichloro-pyridin-4-ylmethyl)-6-methoxy-phthalazin-5-yl esterHCID 53981658—
CatalystCopper(1+) iodide; Copper(I) iodide; Cuprous iodide; Cuprous iodide (CuI)HCID 24350—
SolventDiethylamineHCID 8021—
Product1-(3,5-Dichloro-pyridin-4-ylmethyl)-6-methoxy-5-(3-morpholin-4-yl-prop-1-ynyl)-phthalazineHCID 1838167238.6%

Reaction Steps

Operating analogously to what described in example 74 starting from trifluoro-methanesulfonic acid 1-(3,5-dichloro-pyridin-4-ylmethyl)-6-methoxy-phthalazin-5-yl ester (2 g, 4.27 mmoles), prepared as described in example 73, 4-prop-2-ynyl-morpholine (640 mg, 5.12 mmoles), prepared as described in example 137, diethylamine (40 ml), bis(triphenylphosphine)PdCl2 (60 mg, 0.0854 mmole) and CuI (16 mg, 0.0854 mmole), 728 mg of the title compound were obtained (yield: 38.6%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06329370B1
Source datasetuspto-grants-2001_12
ORD IDord-f49d194799e24ef089437c5b62b54644
Source noteuspto-grants-2001_12