11. Lineatin is a monoterprene with unique tricyclic acetal structure. 12. Usually, it is handled as the hydrates or methanol-derived acetal . 13. The product of reaction of an aldehyde with trimethyl orthoformate is an acetal . 14. The conversion of a hemiacetal to an acetal is an S N 1 reaction. 15. Aldehydes and ketones undergo a process called acetal exchange with orthoesters to give acetals. 16. Aldehydes and ketones undergo a process called acetal exchange with orthoesters to give acetals . 17. Acetaldehyde forms a stable acetal upon reaction with ethanol under conditions that favor dehydration. 18. Another synthetic polymer sometimes called by the same general category, is acetal resin. 19. The diastereomeric ratios were determined through 1 H NMR using the diastereotopic acetal protons. 20. In methanol it converts to the cyclic acetal , 2, 5-dimethoxyltetrahydrofuran.
