ethyl 2,2-difluorohex-3-enoate

4,4-difluoro-1-(trimethylsilyl)oct-5-en-1-yn-3-one

4,4-difluorooct-5-en-1-yn-3-ol

2,2-difluoro-3-hydroxyhexanoic acid ethyl ester

ethyl 2,2-difluoro-3-(trifluoromethylsulfonyloxy)hexanoate