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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 76943Generated: October 29, 2026

Sulfuric Acid → 4-(Dimethylamino)-4-(4-methoxyphenyl)cyclohexan-1-one

https://huagongshe.com/reaction/76943

Reaction equation

Participants

RoleNameHCIDCharge
ReactantSulfuric AcidHCID 1118—
Reactant[8-(4-Methoxy-phenyl)-1,4-dioxa-spiro[4.5]dec-8-yl]-dimethylamineHCID 12595623—
SolventDiethyl EtherHCID 3283—
Product4-(Dimethylamino)-4-(4-methoxyphenyl)cyclohexan-1-oneHCID 12595645—

Reaction Steps

The title compound from step 1 (6.80 g, 23 mmol) was dissolved in ether (100 mL), mixed with 5% H2SO4 (100 mL) and the solution vigorously stirred for 2 d at RT. The phases were separated and the ether phase discarded. The aqueous phase was made alkaline with 5N NaOH with ice cooling and extracted three times with ether, the combined organic phases were then washed with water, dried over Na2SO4 and concentrated to low volume in a vacuum.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08835689B2
Source datasetuspto-grants-2014_09
ORD IDord-babd786c1e554bcb90455b8ce9dd13fb
Source noteuspto-grants-2014_09