2,2-二甲基乙酰乙酸甲酯

magnesium,2-methylbut-2-ene,chloride

α,α-Dimethyl-vinylessigsaeure-anhydrid

ethyl 4-chloro-2,2-dimethylbutanoate

2,2-Dimethyl-but-3-en-thiosaeure-5-ethylester