Electrocyclization Reactions of Annulated 1,2-Diazahepta-2,4-dien-6-ynyl Anions.

Autor: Lyaskovskyy, Volodymyr, Fr�hlich, Roland, W�rthwein, Ernst-Ulrich
Předmět:
Zdroj: Synlett; 2007, Issue 17, p2733-2737, 5p
Abstrakt: Hydrazones 12a,b,f furnish annulated indenone derivatives (6-azafulvenes) 13a-d upon deprotonation with t-BuOK in DMF at 50 �C. In contrast, deprotonation of a similar N-methyl �hydrazone 12d unexpectedly leads to the isoquinoline derivative 15. Mechanisms for both transformations are proposed, supported by quantum chemical density functional theory (DFT) and ab initio calculations. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index