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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2268847Generated: October 31, 2026

Tetrahydrofuran → Isobutyryl chloride

https://huagongshe.com/reaction/2268847

Reaction equation

Participants

RoleNameHCIDCharge
ReactantTetrahydrofuranHCID 8028—
ReactantTriethylamineHCID 8471—
ReactantPhthalazine, 4-[(3,5-dichloro-4-pyridinyl)methyl]-1,2-dihydro-7-methoxy-HCID 9797215—
ProductIsobutyryl chlorideHCID 62325—
ProductHCID 9843466HCID 9843466—

Reaction Steps

Operating substantially as described in example 25 starting from 4-(3,5-dichloro-pyridin-4-ylmethyl)-7-methoxy-1,2-dihydro-phthalazine (1 g, 3.1 mmoles), prepared as described in example 22, in dry THF (35 ml), triethylamine (1.08 ml, 7.76 mmoles) and isobutanoyl chloride (0.39 ml, 3.72 mmoles), 1 g of the title compound was obtained (yield: 83%). m.p.: 210-212° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06329370B1
Source datasetuspto-grants-2001_12
ORD IDord-044b7eef39ed4c7683d18aacea9098dd
Source noteuspto-grants-2001_12