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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1781513Generated: October 28, 2026

Sodium Hydroxide → HCID 19045621, compound

https://huagongshe.com/reaction/1781513

Reaction equation

Participants

RoleNameHCIDCharge
ReactantSodium HydroxideHCID 14798—
ReactantAluminum(III) ChlorideHCID 6451240—
ReactantHCID 19045814HCID 19045814—
ReactantAluminium lithium hydrideHCID 21226445—
SolventDiethyl EtherHCID 3283—
ProductHCID 19045621HCID 1904562195%

Reaction Steps

To a suspension of lithium aluminum hydride (114 mg, 3 mmol) and aluminum chloride (400 mg, 3 mmol) in ether (4 ml) was added the suspension of 3,4-dihydro-6,7-dimethoxy-4'-methylspiro[naphthalene-2(1H),2'-piperazine]-3',6'-dione (50 mg, 0.16 mmol) in ether (2 ml). The reaction mixture was stirred at ambient temperature for 45 min and treated with 1N sodium hydroxide. The precipitate was filtered and washed with 1N sodium hydroxide and chloroform. The filtrate was washed with sat. sodium chloride, dried, and concentrated to give the titled compound (42 mg, 86%). A portion was dissolved in ethyl acetate and treated with 4N hydrochloric acid in ethyl acetate. Concentration under reduced pressure followed by addition of isopropylether gave a powder.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05633248
Source datasetuspto-grants-1997_05
ORD IDord-de27506f180e47a2ad3ca470cfd3bc5a
Source noteuspto-grants-1997_05