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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 377414Generated: October 25, 2026

Pivalaldehyde → 3-[4-[2-(1-Pyrrolidinyl)ethoxy]benzyl]-2-[4-[2-(3,3-dimethylpropylamino)ethyl]phenyl]-benzo[b]thiophene

https://huagongshe.com/reaction/377414

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPivalaldehydeHCID 12417—
ReactantSodium triacetoxyborohydrideHCID 5049666—
Reactant2-[4-(2-Aminoethyl)phenyl]-3-[4-[2-(1-pyrrolidinyl)ethoxy]benzyl]benzo[b]thiopheneHCID 22462716—
SolventDichloromethaneHCID 6344—
Product3-[4-[2-(1-Pyrrolidinyl)ethoxy]benzyl]-2-[4-[2-(3,3-dimethylpropylamino)ethyl]phenyl]-benzo[b]thiopheneHCID 21182945—

Reaction Steps

3-[4-[2-(1-Pyrrolidinyl)ethoxy]benzyl]-2-[4-(2-aminoethyl)phenyl]benzo[b]thiophene (75 mg) was dissolved in dichloromethane (3.0 mL), treated with trimethylacetaldehyde (30 μL) and sodium triacetoxyborohydride (56 mg) sequentially and allowed to stir at ambient temperature for 3 h. The reaction mixture was concentrated, and column chromatography with ET3N:EtOAc (0-5%) afforded the product (55 mg).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06025382
Source datasetuspto-grants-2000_02
ORD IDord-853b296d8f834d449f42658e467d5f4e
Source noteuspto-grants-2000_02