Method for the preparation of narwedine-type enones
AssigneeEdinen Centar P Chimia
InventorsRadoslav Y. Vlahov, Dikran A. Krikoryan, Maria S. Zagorova, Maya H. Ninova, Stoyan P. Parushev
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Abstract
A method for the preparation of narwedine-type enones involves electrochemical oxidation of diphenolic derivatives in an organic solvent medium containing a conductive salt at a potential ranging from 1.1 to 1.7 volts. The enones so obtained are of high purity and are produced in good yields.
Claims2
Method for the preparation of narwedine enones and derivates thereof of the formula ##STR6## wherein A is selected from the group consisting of ##STR7## Z and Y being selected from the group consisting of H.sub.2 and O, X being a halogen atom, R.sub.4 a low order alkylic group selected from the group consisting of CH.sub.2 C.sub.6 H.sub.5 and CH.sub.2 C.sub.6 H.sub.4 OCH.sub.3 and B HClO.sub.4 and related salts of organic and inorganic acids which comprises electrochemically oxidizing a diphenolic compound of the formula ##STR8## wherein A and X are as represented above and R.sub.1, and R.sub.2 are alkylic groups selected from the group consisting of CH.sub.2 C.sub.6 H.sub.5 and CH.sub.2 C.sub.6 H.sub.4 OCH.sub.3, said oxidizing being effected in a divided cell at an anode potential ranging from 1.1 to 1.7 volts in the presence of a solvent and a conductive salt.
Dependencies are inferred from the claim text.