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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2191140Generated: November 3, 2026

Aluminium lithium hydride → (S)-1-[(3S,4S)-1-Benzyl-3-(3,4-difluoro-phenyl)-piperidin-4-yl]-ethanol

https://huagongshe.com/reaction/2191140

Reaction equation

Participants

RoleNameHCIDCharge
ReactantAluminium lithium hydrideHCID 21226445—
Reactant1-[(3S,4S)-1-Benzyl-3-(3,4-difluoro-phenyl)-piperidin-4-yl]-ethanoneHCID 59438122—
Reactant(RS)-1-[(3SR,4SR)-1-Benzyl-3-(4-chloro-phenyl)-piperidin-4-yl]-ethanolHCID 68475389—
Product(S)-1-[(3S,4S)-1-Benzyl-3-(3,4-difluoro-phenyl)-piperidin-4-yl]-ethanolHCID 59438160—

Reaction Steps

In analogy to the procedure described for the synthesis of (RS)-1-[(3SR,4SR)-1-Benzyl-3-(4-chloro-phenyl)-piperidin-4-yl]-ethanol (example 5 (d)) the title compounds were synthesized from 1-[(3S,4S)-1-Benzyl-3-(3,4-difluoro-phenyl)-piperidin-4-yl]-ethanone through reduction with LiAlH4. (S)-1-[(3S,4S)-1-Benzyl-3-(3,4-difluoro-phenyl)-piperidin-4-yl]-ethanol was obtained as light yellow waxy solid. MS (m/e): 332.1 [(M+H)+] and (R)-1-[(3S,4S)-1-Benzyl-3-(3,4-difluoro-phenyl)-piperidin-4-yl]-ethanol was obtained as light yellow viscous oil. MS (m/e): 332.1 [(M+H)+].

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08324248B2
Source datasetuspto-grants-2012_12
ORD IDord-b47f972f975042adbf213d2d86cae1ae
Source noteuspto-grants-2012_12