2-(2-formyl-4,5-dimethoxyphenyl)-4,5-dimethoxybenzaldehyde

palladium,triphenylphosphane

(4-(tert-butyl)cyclohex-1-en-1-yl)triphenylphosphonium

3-chloro-4,4-dimethylpent-2-enal

2-硫代水杨醛