ISSN:
0947-3440
Keywords:
2H-Imidazole
;
1,4-Diazadienes
;
[4 + 2] Cycloadditions
;
Chemistry
;
Organic Chemistry
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
Notes:
2,2-Diethyl-4,5-dimethyl-2H-imidazole 1, formally a 1,4-di-azadiene, does not produce [4 + 2] cycloadducts with various electronically-different dienophiles. In the presence of tri-fluoroacetic acid, it tautomerizes to 2,2-diethyl-4-methyl-5-methylene-3-imidazoline 2 and forms a dimer, the structure of which was determined by X-ray crystallography.
Additional Material:
1 Ill.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/jlac.1995199509236
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