二苯基甲基膦

lithium (1-methylethenyl)cyclopentadiene

5-(5-methylhex-5-en-2-ylidene)cyclopenta-1,3-diene

3-acetyl-2-hydroxy-5-propan-2-ylcyclohepta-2,4,6-trien-1-one

2-propan-2-yl-5-propan-2-ylidenecyclopenta-1,3-diene