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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 590850Generated: October 31, 2026

Tetrahydrofuran → HCID 118272360, compound

https://huagongshe.com/reaction/590850

Reaction equation

Participants

RoleNameHCIDCharge
ReactantTetrahydrofuranHCID 8028—
ReactantSodium t-butoxideHCID 23676156—
ReactantHCID 118272256HCID 118272256—
Catalyst2-Dicyclohexylphosphino-2',6'-diisopropoxybiphenylHCID 16217985—
SolventTolueneHCID 1140—
SolventEthyl AcetateHCID 8857—
ProductHCID 118272360HCID 118272360—

Reaction Conditions

Temperature55 °C

Reaction Steps

N-(2-(6-chloro-3-iodo-1-trityl-1H-pyrazolo[4,3-c]pyridin-4-yl)ethyl)propan-2-amine (554 mg, 0.913 mmol) and RuPhos pre-catalyst (66.5 mg, 0.091 mmol) were charged in a 2 dram vial, evacuated and backfilled with nitrogen and taken in toluene (4 mL) before the addition of a solution of 2M NaOtBu in THF (1.15 mL, 2.3 mmol). The reaction mixture was heated at 55° C. for 1 hour before it was diluted with EtOAc and washed with water, brine, dried with sodium sulfate and concentrated. Purification of the residue by flash column (0-50% EtOAc-hexanes) gave 7-chloro-3-isopropyl-1-trityl-1,3,4,5-tetrahydropyrazolo[3,4,5-de][1,6]naphthyridine. MS ESI calc'd. for C30H27ClN4 [M+H]+ 480. found 480.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09233979B2
Source datasetuspto-grants-2016_01
ORD IDord-f97dcd0be41c466eb64a72203279052d
Source noteuspto-grants-2016_01