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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 498051Generated: November 1, 2026

2-Iodobenzoic acid → 3-Phenyl-1-(2-pyridinyl)-1,9-dihydro-4H-pyrazolo[3,4-b]quinolin-4-one

https://huagongshe.com/reaction/498051

Reaction equation

Participants

RoleNameHCIDCharge
Reactant2-Iodobenzoic acidHCID 6941—
ReactantBenzoylacetonitrileHCID 64799—
Reactant2-HydrazinopyridineHCID 78645—
Reactant1-pyridyl-3-phenyl-5-aminopyrazoleHCID 12288136—
Product3-Phenyl-1-(2-pyridinyl)-1,9-dihydro-4H-pyrazolo[3,4-b]quinolin-4-oneHCID 135848072—

Reaction Steps

Following the procedures described in Reference Example 2-5 and Example 2-12, the title compound was prepared from o-iodobenzoic acid and 3-phenyl-1-(2-pyridinyl)-1H-pyrazol-5-ylamine which was previously prepared from benzoylacetonitrile and 2-hydrazinopyridine following the method described in Reference Example 2-72 (58% yield).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06949648B2
Source datasetuspto-grants-2005_09
ORD IDord-2d0d0910f2d34f18aedcdc96b631b276
Source noteuspto-grants-2005_09