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ERIC Number: EJ820313
Record Type: Journal
Publication Date: 2006-Nov
Pages: 3
Abstractor: ERIC
Reference Count: 10
ISSN: ISSN-0021-9584
Photochemical Dimerization of Dibenzylideneacetone: A Convenient Exercise in [2+2] Cycloaddition Using Chemical Ionization Mass Spectrometry
Rao, G. Nageswara; Janardhana, Chelli; Ramanathan, V.; Rajesh, T.; Kumar, P. Harish
Journal of Chemical Education, v83 n11 p1667-1669 Nov 2006
Chemical reactions induced by light have been utilized for synthesizing highly strained, thermodynamically unstable compounds, which are inaccessible through non-photochemical methods. Photochemical cycloaddition reactions, especially those leading to the formation of four-membered rings, constitute a convenient route to compounds that are difficult to prepare by other methods. Although the theory of cycloaddition reactions is encountered in advanced texts on organic chemistry most practical illustrations of the theory restrict themselves to [4+2] thermally mediated Diels-Alder cycloadditions. In this article, the authors present a [2+2] cycloaddition that is relatively easy to carry out using sunlight for photochemical mediation. (Contains 1 table and 5 notes.)
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:; Web site:
Publication Type: Journal Articles; Reports - Descriptive
Education Level: Higher Education; Postsecondary Education
Audience: N/A
Language: English
Sponsor: N/A
Authoring Institution: N/A