Photo-oxidation of tanshinone II (6,7,8,9-tetrahydro-1,6,6-trimethylphenanthro[1,2-b]furan-10,11-dione)
- 1 January 1976
- journal article
- research article
- Published by Royal Society of Chemistry (RSC) in Journal of the Chemical Society, Perkin Transactions 1
- No. 16,p. 1716-1718
- https://doi.org/10.1039/p19760001716
Abstract
Irradiation of the phenanthrofurandione tanshinone II (2) with u.v. light in the presence of air afforded 9-hydroxytanshinone (1), which had been isolated from a Chinese drug as a minor constituent. Two other products, an anhydride (3) and a lactone (4), were also obtained. The formation of these compounds was explained in terms of an intermediate 9,10-epidioxide (6), derived from tanshinone II by photoenolization and oxygenation.This publication has 0 references indexed in Scilit: