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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 373836Generated: October 31, 2026

Sodium Hydroxide → HCID 19761442, compound

https://huagongshe.com/reaction/373836

Reaction equation

Participants

RoleNameHCIDCharge
ReactantSodium HydroxideHCID 14798—
ReactantSodium cyanoborohydrideHCID 5003444—
ReactantHCID 19761414HCID 19761414—
SolventAcetic AcidHCID 176—
ProductHCID 19761442HCID 1976144299.5%

Reaction Steps

Sodium cyanoborohydride (19.30 g) was added portionwise to a solution of 20.50 g 2-(2-aminophenyl)-5-methoxy-1H-indole in 1500 ml acetic acid at 15° C. The resulting solution was stirred at room temperature for one day. The reaction mixture was diluted and made basic by addition of 50% NaOH in ice. The mixture was extracted with ethyl acetate, and the extracts were washed with saturated NaCl solution and dried (MgSO4). Concentration yielded 20.56 g solid. Purification of a 10 g portion by HPLC yielded 2.33 g solid, m.p. 94°-98° C. (dec.).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05166170
Source datasetuspto-grants-1992_11
ORD IDord-63337f55af704a44b418949e95dc3445
Source noteuspto-grants-1992_11