1,1,3,4-四甲基-2-茚酮

2',2'-dimesityl-1,1,3,3-tetramethyl-1,3-dihydrospiro[indene-2,3'-[1,2]oxasilirane]

叔丁醇

1,1,4,4-tetramethylnaphthalene-2,3-dione

5,6-di(propan-2-ylidene)cyclohexa-1,3-diene