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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 131427Generated: October 26, 2026

Formaldehyde → (S)-2-Trifluoromethyl-11-[3-(3-methoxy-propyl)-4-methyl-piperazin-1-yl]-5H-dibenzo[b,e][1,4]diazepine

https://huagongshe.com/reaction/131427

Reaction equation

Participants

RoleNameHCIDCharge
ReactantFormaldehydeHCID 712—
ReactantSodium triacetoxyborohydrideHCID 5049666—
Reactant(S)-2-Trifluoromethyl-11-[3-(3-methoxy-propyl)-piperazin-1-yl]-5H-dibenzo[b,e][1,4]diazepineHCID 10047618—
SolventWaterHCID 962—
SolventDichloromethaneHCID 6344—
Product(S)-2-Trifluoromethyl-11-[3-(3-methoxy-propyl)-4-methyl-piperazin-1-yl]-5H-dibenzo[b,e][1,4]diazepineHCID 10342762—

Reaction Steps

Add (S)-2-trifluoromethyl-11-[3-(3-methoxy-propyl)-piperazin-1-yl]-5H-dibenzo[b,e][1,4]diazepine (0.167 g, 0.399 mmol), formaldehyde (40.8 mg, 0.499 mmol, 37%), and sodium triacetoxyborohydride (0.127 g, 0.598 mmol) in dichloromethane (3 mL). Stir at ambient temperature over night. Dilute the mixture with water and extract with dichloromethane. Wash the organic with brine twice, dry over sodium sulfate, filter, and concentrate under reduced pressure to give crude residue. Purify the residue by flash chromatography, eluting with 2M ammonia in methanol:dichloromethane (5:95) to give the title compound: mass spectrum (m/e):433.08 (M+1).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07384934B2
Source datasetuspto-grants-2008_06
ORD IDord-d4bb8605b0254a79af39ed717cada7dd
Source noteuspto-grants-2008_06