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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 280264Generated: October 26, 2026

2-Hydrazinoethanol → 9-methoxypyrazolo[3,4,5-kl]acridine-2(6H)-ethanol

https://huagongshe.com/reaction/280264

Reaction equation

Participants

RoleNameHCIDCharge
Reactant2-HydrazinoethanolHCID 8017—
Reactant1-chloro-7-methoxy-4-nitro-10H-acridin-9-oneHCID 438231—
SolventMethanolHCID 887—
SolventTetrahydrofuranHCID 8028—
Product9-methoxypyrazolo[3,4,5-kl]acridine-2(6H)-ethanolHCID 136166594—

Reaction Steps

A solution of 3.6 g of 2-hydroxyethyl hydrazine in 5 ml of methanol and 20 ml of THF was added over 1.5 hours to a mixture of 6.09 g of 1-chloro-7-methoxy-4-nitro-9(10H)-acridinone in 75 ml of methanol and 55 ml of THF, and the resulting suspension was stirred 20 hours at room temperature. The precipitate was collected and recrystallized from DMSO-methanol, Providing 9-methoxypyrazolo[3,4,5-kl]acridine-2(6H)ethanol, mp 275°-276° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04588730
Source datasetuspto-grants-1986_05
ORD IDord-31c3ec94d59540cbb9862113feb5b3b7
Source noteuspto-grants-1986_05