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ERIC Number: EJ820748
Record Type: Journal
Publication Date: 2007-Mar
Pages: 2
Abstractor: As Provided
Reference Count: 10
ISBN: N/A
ISSN: ISSN-0021-9584
The Aldol Addition and Condensation: The Effect of Conditions on Reaction Pathway
Crouch, R. David; Richardson, Amie; Howard, Jessica L.; Harker, Rebecca L.; Barker, Kathryn H.
Journal of Chemical Education, v84 n3 p475-476 Mar 2007
The reaction of a ketone and an aldehyde in aqueous Na[subscript 2]CO[subscript 2] is described. This experiment is performed in the absence of strong bases or organic solvents and offers the opportunity for students to observe the critical role that reaction temperature and base strength have in determining the product of the base-mediated addition of a ketone to an aldehyde. When the reaction takes place at room temperature, the aldol addition product is produced. But, when the reaction is heated to 50 [degree]C, the aldol condensation product is isolated. Both reactions use the same quantities of reagents. The reaction temperature is the factor that determines which product is formed. When NaOH is used in place of Na[subscript 2]CO[subscript 2], the aldol condensation product is isolated regardless of temperature. (Contains 1 figure/scheme.)
Division of Chemical Education of the American Chemical Society. Subscription Department, P.O. Box 1267, Bellmawr, NJ 08099-1267. Tel: 800-691-9846; Tel: 856-931-5825; Fax: 856-931-4115; e-mail: jchemed@egpp.com; Web site: http://www.jce.divched.org
Publication Type: Journal Articles; Reports - Research
Education Level: Higher Education; Postsecondary Education
Audience: N/A
Language: English
Sponsor: N/A
Authoring Institution: N/A