三氟化硼乙醚络合物

三氯乙酸乙酯

ethyl 6-chloro-2-(diethoxymethylene)-3,6-dioxohexanoate

ethyl 7-chloro-2-(diethoxymethylene)-3,7-dioxoheptanoate

ethyl 8-chloro-2-(diethoxymethylene)-3,8-dioxooctanoate