Dimethoxyphenylpropene from Eugenol

of an isomeric mixture of methoxyeugenol and methoxyisochavicol obtained as previously described, or in any other way, is dissolved in 6.5 liters of 94% ethyl alcohol, and to this solution is added 0.29 kg. of calcium hydroxide. 

The mixture is stirred for 3 hours and filtered, centrifuged or otherwise treated to remove the insoluble salt. 

The filter cake is washed with 1.5 liters of alcohol and then sludged up with 5 liters of water. To this mixture is added 0.4 kg of soda ash and the mass is boiled for 1 hour. After cooling, the mixture is filtered or otherwise treated to remove the insoluble calcium carbonate. The filtrate of this second filtering operation is acidified whereby a yield of 0.6 kg. of methoxychavicol will be obtained. The alcoholic filtrate of the 

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