Réaction De Diarylnitrilimines Sur Des 2-Arylidene-Tetralin-1-Ones Substituées. Influence Des Facteurs Conformationnels Sur La Diastéréochimie De La Réaction
Autor: | Joël Vebrel, Marie-France Mercier, Bernard Laude, Kabula Tshiamala, Abdelali Kerbal |
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Rok vydání: | 2010 |
Předmět: | |
Zdroj: | Bulletin des Sociétés Chimiques Belges. 100:159-168 |
ISSN: | 0037-9646 |
DOI: | 10.1002/bscb.19911000209 |
Popis: | Spiropyrazolines have been synthetized by 1,3-dipolar cycloaddition of some 2-arylidene-1 -tetralones with diarylnitrilimines. It is shown that ring-closure reaction is regiospecific. The diastereoselectivity of the reaction is strongly dependent on the conformational disposition of the substituents of the dipolarophile. The relative configuration and conformation of the products have been determined by means of protonic magnetic resonance measurements. |
Databáze: | OpenAIRE |
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