30984-01-1Relevant articles and documents
The twofold Heck reaction on 1,2-dihalocycloalkenes and subsequent 6π-electrocyclization of the resulting (E,Z,E)-1,3,5-hexatrienes: A new formal {2+2+2}-assembly of six-membered rings
Voigt, Katharina,Von Zezschwitz, Paultheo,Rosauer, Keith,Lansky, Annegret,Adams, Amy,Reiser, Oliver,De Meijere, Armin
, p. 1521 - 1534 (2007/10/03)
1,6-Disubstituted (E,Z,E)-1,3,5-hexatrienes (4 and 5) were prepared by vicinal twofold Heck coupling reactions from 1,2-dibromocyclopentene (1), 1,2-dibromocyclohexene (2), 1,2-diiodocyclopentene (8), 1,2-diiodocyclohexene (9), 1-bromo-2-trifluoromethanes