2',4'-difluoro-5-(5,5-dimethyl-1,3-dioxan-2-yl)valerophenone

4'-n-Butyl-3-(1,3-dioxan-2-yl)propiophenone

5-(5,5-dimethyl-1,3-dioxan-2-yl)-4'-n-propylvalerophenone

4-(5,5-Dimethyl-1,3-dioxan-2-yl)-4'-isopropylbutyrophenone

5-(5,5-dimethyl-1,3-dioxan-2-yl)-4'-hexylvalerophenone

bis-3',5'-trifluoromethyl-4-(5,5-dimethyl-1,3-dioxan-2-yl)butyrophenone

5-(5,5-dimethyl-1,3-dioxan-2-yl)-5'-fluoro-2'-methylvalerophenone

2',4'-dimethoxy-3-(1,3-dioxan-2-yl)propiophenone

3',5'-dimethoxy-5-(5,5-dimethyl-1,3-dioxan-2-yl)valerophenone

5-(5,5-dimethyl-1,3-dioxan-2-yl)-2'-phenylvalerophenone

5-(5,5-dimethyl-1,3-dioxan-2-yl)-4'-phenylvalerophenone