Buchbauer G, Spreitzer H, Püringer C. [Synthesis of the isocamphene series. 33. The synthesis of fungicidal norbornane derivatives].
Arch Pharm (Weinheim) 1990;
323:367-73. [PMID:
2396894 DOI:
10.1002/ardp.19903230609]
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Abstract
Starting from the corresponding amines the syntheses of various norbornyl ureas with potential fungicidal activity are described. These new compounds possess a tricyclo[5.2.1.0(2,6)]decane, or an isocamphenilane, a camphenilane, an exo- and endo- dimethylnorbornane or a bicyclo[2.2.2]octane carbon skeleton. With the exception of the first class all other derivatives bear a geminal dimethyl group--important because of its shielding effect--at C-3 of the bicyclus. Some ureas, especially 6 and the acetamide 5, are active against phytopathogenic fungi.
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