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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1408956Generated: November 1, 2026

Hydrogen Bromide → (+/-)-(1S,2S)-2-amino-1-methylcyclohexanolhydrobromide

https://huagongshe.com/reaction/1408956

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrogen BromideHCID 260—
Reactant(+/-)-benzyl (1S,2S)-2-hydroxy-2-methylcyclohexylcarbamateHCID 86707706—
SolventAcetic AcidHCID 176—
Product(+/-)-(1S,2S)-2-amino-1-methylcyclohexanolhydrobromideHCID 86707707—

Reaction Steps

To (±)-Benzyl (1S,2S)-2-hydroxy-2-methylcyclohexylcarbamate (81.4 mg, 0.309 mmol) was added HBr in AcOH, 33% (1 mL, 6.1 mmol) and the resulting mixture was stirred at rt under N2 for 2 h. The solvents were removed and the crude residue concentrated with EtOH (2×) and dried on high vacuum overnight to afford an orange low-melting solid which was used directly in the next step.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08921368B2
Source datasetuspto-grants-2014_12
ORD IDord-7eaf93c4e5f042c0b3f0639cad8a2d94
Source noteuspto-grants-2014_12