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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2046698Generated: October 25, 2026

Water → 1'-Benzyl-6-bromo-4-hydroxy-spiro[chromane-2,4'-piperidine]

https://huagongshe.com/reaction/2046698

Reaction equation

Participants

RoleNameHCIDCharge
ReactantWaterHCID 962—
ReactantSodium borohydrideHCID 4311764—
Reactant1'-Benzyl-6-bromospiro[chroman-2,4'-piperidin]-4-oneHCID 12887955—
SolventMethanolHCID 887—
Product1'-Benzyl-6-bromo-4-hydroxy-spiro[chromane-2,4'-piperidine]HCID 5295219699.1%

Reaction Steps

A mixture of 1′-benzyl-6-bromo-spiro[chromane-2,4′-piperidine]-4-one (3.0 g, 7.8 mmol) and NaBH4 (1.47 g, 38.75 mmol) in MeOH (20 ml) was stirred at RT. After 3 h, the solution was poured into water and the product was extracted with DCM (50 ml). The organic phase was dried over Na2SO4, filtered and evaporated under vacuum to give 1′-benzyl-6-bromo-4-hydroxy-spiro[chromane-2,4′-piperidine] (3.0 g) as a light yellow solid.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08592444B2
Source datasetuspto-grants-2013_11
ORD IDord-d234f0477d2d4badb21ecf39c75919eb
Source noteuspto-grants-2013_11