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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1666905Generated: October 31, 2026

Oxalic Acid → HCID 21071628, compound

https://huagongshe.com/reaction/1666905

Reaction equation

Participants

RoleNameHCIDCharge
ReactantOxalic AcidHCID 971—
Reactant3-PhenoxybenzaldehydeHCID 38284—
Reactant5-(Benzyloxy)tryptamineHCID 89576—
ReactantSodium borohydrideHCID 4311764—
SolventMethanolHCID 887—
SolventWaterHCID 962—
ProductHCID 21071628HCID 21071628—

Reaction Steps

Combine 5-benzyloxy tryptamine (1.23 g, 4.6 mmol), 3-phenoxybenzaldehyde (97%, 1.09 g, 5.53 mmol) and molecular sieves 4A (1.0 g) and stir in methanol (15 mL) for 4 h. Filter the molecular sieves and wash several times with MeOH. To this MeOH solution, add portionwise NaBH4 (174 mg, 4.60 mmol), stir the resulting mixture at room temperature for 1 h. Remove MeOH under vacuum, dilute the residue with CH2CL2/water, extract with CH2Cl2, combine organic layers, dry over Na2SO4 and concentrate the solvent in vacuo. Purification by silica gel chromatography (CH2Cl2/MeOH) to give the free base. Combine the free base with oxalic acid to form the salt: (300 MHz, DMSO-d6) 2.95-3.15 (m, 4H), 3.93 (s, 2H), 4.10 (br, 1H), 5.05 (s, 2H), 6.85-7.46 (m, 18H), 10.67 (br, 1H); ms (ELECTROSPRAY) m/e: 449.2 (M+1).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08044090B2
Source datasetuspto-grants-2011_10
ORD IDord-9da9f32cea4c4a51839db5d661164b92
Source noteuspto-grants-2011_10