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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1650067Generated: October 26, 2026

Calcium Carbonate → (4S,5R)-5-Methyl-4-(prop-2-en-1-yl)cyclohex-2-en-1-one

https://huagongshe.com/reaction/1650067

Reaction equation

Participants

RoleNameHCIDCharge
ReactantCalcium CarbonateHCID 10112—
ReactantSulfuric acid magnesium salt (1:1)HCID 24083—
Reactant5-Methyl-4-(2-propenyl)-2-phenylsulfenylcyclohexanoneHCID 19855336—
SolventTolueneHCID 1140—
Product(4S,5R)-5-Methyl-4-(prop-2-en-1-yl)cyclohex-2-en-1-oneHCID 7035993252%

Reaction Steps

A mixture of 96.7 nmole of 5-methyl-4-(2-propenyl)-2-phenylsulfenylcyclohexanone and 10 g. (100 mmole) of calcium carbonate in 300 ml. of toluene was heated at 110° C. for 40 minutes. The reaction was cooled, magnesium sulfate added and filtered. The filtrate was evaporated and the residue purified via column chromatography on 300 g. of silica gel eluted with 20% ether-hexane and then distillation to yield 7.61 g. (52%) of the title compound.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04921994
Source datasetuspto-grants-1990_05
ORD IDord-8d1432bbbd054d599a33842c6502562b
Source noteuspto-grants-1990_05