异佛尔酮

6-chloro-3,5,5-trimethylcyclohex-2-en-1-one

二苯基次磷酸苯基酯

(4,6,6-trimethyl-2-oxocyclohex-3-en-1-yl) acetate

6-bromo-3,5,5-trimethylcyclohex-2-en-1-one