1-(5-乙炔基-2-甲基-4,5-二氢-3-呋喃基)乙酮

3-acetyl-2-methyl-5-(3-acetyl-2-methyl-5-furyl)-4,5-dihydrofuran

1,2,4-tris(ethenyl)benzene

methyl chloro(2-chlorobut-3-yn-1-yl)carbamate

methyl N-chloro-N-(4-chlorobuta-2,3-dienyl)carbamate