1-甲氧基-3-(三甲基硅氧基)-丁二烯

3-methyl-4-oxo-1-thiacyclopent-2-ene-1,1-dioxide

3,6-二氧杂双环[3.1.0]己烷-2,4-二酮

2-diazonio-3-oxoprop-1-en-1-olate

乙醛