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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 895773Generated: October 30, 2026

Sodium Sulfate → HCID 22381732, compound

https://huagongshe.com/reaction/895773

Reaction equation

Participants

RoleNameHCIDCharge
ReactantSodium SulfateHCID 24436—
ReactantHydroxyamine hydrochlorideHCID 443297—
ReactantAluminium lithium hydrideHCID 21226445—
ReactantHCID 22381746HCID 22381746—
SolventPyridineHCID 1049—
SolventTetrahydrofuranHCID 8028—
ProductHCID 22381732HCID 2238173258.2%

Reaction Steps

A mixture of 1,2,3,4-tetrahydrocyclopenta[b]indole-5-carbaldehyde (578 mg, 3.12 mmol), hydroxylamine hydrochloride (238 mg, 3.42 mmol) and pyridine (3 mL) in THF (15 mL) was stirred at rt. After 5.5 h, the reaction mixture was cooled to 0-5° C. in an ice-bath before LAH power (474 mg, 12.5 mmol) was added portionwise. The reaction mixture was then warmed to rt overnight before a sat'd Na2SO4 solution (1 mL) was added dropwise to quench the excess reagent. After 30 min of stirring, solid Na2SO4 and Et2O (30 mL) were added. The suspension was filtered and concentrated in vacuo to give 338 mg (58%) of the title compound as a yellow solid.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06916922B2
Source datasetuspto-grants-2005_07
ORD IDord-90cd5539ebfd455c87a5e11b094b8e50
Source noteuspto-grants-2005_07