Abstract The ether-linkage of 6-methoxymethylmorphenol (I) is cleaved on reduction with LiAlH 4 if the reaction is carried out during irradiation with ultraviolet light; other methods of reduction lead to saturation of the 9, 10-double bond. Using methylmorphenol (III) as a model substance the cleavage occurs between the oxygen atom of the ether-bridge and C-4 yielding 3-methoxy-5-hydroxy-phenanthrene (IV). Its structure has been proved by ...
![1,3,5-trichloro-2-[3-(4-methoxyphenoxy)propoxy]benzene Structure](https://image.chemsrc.com/caspic/105/6481-90-9.png)
![3,6-dimethoxyphenanthreno[4,5-bcd]furan Structure](https://image.chemsrc.com/caspic/330/4504-42-1.png)
