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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1489043Generated: October 30, 2026

Tetrahydrofuran → HCID 18980280, compound

https://huagongshe.com/reaction/1489043

Reaction equation

Participants

RoleNameHCIDCharge
ReactantTetrahydrofuranHCID 8028—
ReactantCalciumoxideHCID 6850728—
ReactantN-(3-aminopropyl)pyrimidin-2-amineHCID 14397405—
ReactantHCID 18980288HCID 18980288—
ProductHCID 18980280HCID 1898028036%

Reaction Conditions

Temperature160 °C

Reaction Steps

A mixture of 5-(3-chloropropoxy)-2,3-dihydro-1,4-benzodioxin (0.017 mol), N-2-pyrimidinyl-1,3-propanediamine (0.026 mol) and calcium oxide (5 g) in tetrahydrofuran (150 ml) was stirred overnight at 160° C. (pressure vessel). The mixture was cooled, filtered and the filtrate was evaporated. The residue was purified by column chromatography over silica gel (eluent: CH2Cl2 /(CH3OH/NH3)95/5). The pure fractions were collected and the solvent was evaporated, yielding 2.66 g N-[3-[(2,3-dihydro-1,4-benzodioxin-5-yl)oxy]propyl]-N'-2-pyrimidinyl-1,3-propanediamine ethanedioate(1:1) (36.0%); mp. 200.2° C. (comp. 8)

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05677310
Source datasetuspto-grants-1997_10
ORD IDord-03568a1a619c4f01a2fb82f31c841667
Source noteuspto-grants-1997_10