2-diazonio-1-methoxy-3-oxobut-1-en-1-olate

1-diazo-1-phenyl-2-oxopropane

2-(allyloxy)-1-phenylpropan-1-one

(E)-1-(2,2-dimethylhydrazono)-2-methyl-1-phenylpent-4-en-2-ol

1-phenyl-2-(2-propenyloxy)ethanone