Photolysis of β-pinene and dodecamethylhexasilane (2) followed by methanol quenching gave the allylsilane 5 and the methoxysilane 6. The intermediacy of the silirane 7 was proposed. Photolysis of α-pinene and 2 gave 6 only. The formation of another silirane 15 as intermediate was verified by deuterium labelling experiment. The potential of silylene chemistry in organic synthesis was examined.
![(6,6-dimethyl-4-bicyclo[3.1.1]hept-3-enyl)methyl-dimethylsilane Structure](https://image.chemsrc.com/caspic/263/111827-56-6.png)