(E)-4-mesitylbut-3-en-2-one

4a,8-dimethyl-3,4,5,6,7,8-hexahydronaphthalen-2-one

5-methylundecan-2-one

3-(triphenyl-λ⁵-phosphanylidene)heptane-2,6-dione

4,5-二氢-3-甲基-1H-吡唑