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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1943612Generated: November 3, 2026

Phenethylamine → HCID 11515703, compound

https://huagongshe.com/reaction/1943612

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPhenethylamineHCID 1001—
ReactantSodium cyanoborohydrideHCID 5003444—
ReactantHCID 59553058HCID 59553058—
SolventMethanolHCID 887—
ProductHCID 11515703HCID 1151570336.8%

Reaction Steps

A solution of (E)-2-(1,5,6,7-tetrahydro-1-phenyl-4H-indazol-4-ylidene) acetaldehyde (299 mg, 1.25 mmol) and N-benzylmethylamine (0.18 mL, 1.38 mmol) in methanol (20 mL) cooled to 0° C. is left stirring for 20 minutes. Then sodium cyanoborohydride (213 mg, 3.39 mmol) at 0° C. is added, and then it is left to increase to room temperature following the TLC reaction. The solvent is evaporated at reduced pressure, diluted in ethyl acetate, washed with water and with sodium chloride saturated solution, dried and evaporated under reduced pressure. The resulting crude product is purified by means of silica gel chromatography, giving (E)-N-benzyl-2-(6,7-dihydro-1-phenyl-1H-indazol-4(5H)-ylidene)-N-methylethanamine (158 mg, 0.46 mmol, 36%, oil).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08394797B2
Source datasetuspto-grants-2013_03
ORD IDord-ef47fffd612f427ba9b1ab9aa3c747d1
Source noteuspto-grants-2013_03