Melting points were taken in capillaries and are uncorrected. ezo-Tricyclo [6.1. 0.04~ 9] nona- 2, 5-dien-7-ol@ a).-A solution of 2.0 g of 1 and 15 mg of rose bengal in 100 ml of anhydrous methanol was bubbled with oxygen and irradiated with a tungsteniodine lamp until the absorption of oxygen ceased (calcd 200 ml, obsd 350 ml). The reaction mixture was reduced with 10 g of NaBH4 at room temperature, quenched with 100 ml of 2070 KOH solution, ...
