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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1944715Generated: October 31, 2026

Hydrochloric Acid → Methyl 4-aminocyclohexanecarboxylate

https://huagongshe.com/reaction/1944715

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantDiethyl EtherHCID 3283—
Reactant2,2-DimethoxypropaneHCID 6495—
Reactant4-(((Tert-butoxy)carbonyl)amino)cyclohexane-1-carboxylic acidHCID 2755996—
SolventMethanolHCID 887—
ProductMethyl 4-aminocyclohexanecarboxylateHCID 422580103.8%

Reaction Steps

(1r,4r)-4-(tert-Butoxycarbonylamino)cyclohexanecarboxylic acid (25 g, 103 mmol) was dissolved in MeOH (250 ml), to which 2,2-dimethoxypropane (10.70 g, 12.63 ml, 103 mmol) and then 2M HCl in ether (51 ml, 103 mmol) were added. The reaction mixture was stirred at room temperature overnight, then concentrated and the residue was treated with ether (100 ml). The resulting white suspension was filtered then dried to afford a white powder (16.8 g, 84% yield).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08394858B2
Source datasetuspto-grants-2013_03
ORD IDord-d159148976bd42a5a75f9591b7a56504
Source noteuspto-grants-2013_03