ethyl 2-(diethoxyphosphoryl)acetate potassium salt

ethyl 4-(6,7,8,9-tetrahydro-5H-5-benzocycloheptenyl)-2-butenoate

diethyl (4-phenyl-2-oxobut-3-en-1-yl)phosphonate

(4R,5R)-{5-[(E)-2''-ethoxycarbonyl-vinyl]-2',2'-dimethyl-[1',3']-dioxolan-4-yl}-(E)-acrylic acid ethyl ester

2-(diethoxy-phosphoryl)-acrylic acid (1R,2S,5R)-2-isopropyl-5-methyl-cyclohexyl ester