11. Under alkaline conditions, it undergoes a rapid aldol condensation. 12. These imines can be used to direct subsequent reactions like an aldol condensation. 13. Upon subsequent removal of the auxiliary, the desired aldol stereoisomer is revealed. 14. It is made by aldol condensation of D-and L-glyceraldehyde. 15. An Evans syn aldol reaction was utilized to obtain the desired stereochemical outcome. 16. In the case of ketones and especially aldehydes aldol condensations have been observed. 17. Some unusual sugars are also accessible via aldol addition. 18. Aldol condensation of the aldehyde gives 2-ethylhexanal.19. This occurs through a stereospecific retro-aldol cleavage. 20. Via aldol condensations, benzaldehyde is converted into derivatives of cinnamaldehyde and styrene.
