Zobrazeno 1 - 5
of 5
pro vyhledávání: '"Jan O. V»gberg"'
Publikováno v:
Tetrahedron. 50:61-76
Fulvene-anions (vinyl cyclopentadienyl anions) are exclusively allylated in the exocyclic position by allylic chlorides, allylic acetates, and allylic carbonates in the presence of catalytic amounts of bis(dibenzylideneacetone)palladium(O) and triphe
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c0a073d641caf6d62295987f058df59f
https://doi.org/10.1016/s0040-4020(01)80737-7
https://doi.org/10.1016/s0040-4020(01)80737-7
Publikováno v:
Tetrahedron Letters. 32:5247-5250
6,6-Dimethylfulvene was regioselectively functionalized at the 7-position by reacting the fulvene anion 1 with allylic chlorides or allylic acetates in the presence of a palladium(0)-phosphine catalyst.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9e25d969a10e6eb8aa85c2a32d6ff12e
https://doi.org/10.1016/s0040-4039(00)92355-4
https://doi.org/10.1016/s0040-4039(00)92355-4
Autor:
Andreas Heumann, Sverker Hansson, Jan O. V»gberg, Björn Åkermark, Jan-Erling Bäckvall, Tobias Rein
Publikováno v:
Journal of Organometallic Chemistry. 369:433-444
In order to investigate the possibility of improving the selectivity in palladium-catalyzed acetoxylation of substituted cycloalkenes and linear alkenes, the influence of added strong acids has been studied. It was found that the product selectivity
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2ebefaf27dbc58c5bd06f6ce9a8cf2d2
https://doi.org/10.1016/0022-328x(89)85192-7
https://doi.org/10.1016/0022-328x(89)85192-7
Publikováno v:
Tetrahedron Letters. 30:137-140
Dienes 1 were transformed into γ-lactones via a novel stereocontrolled palladium-catalyzed lactonization reaction. The oxylactonization can be directed towards either a cis- or trans- addition across the diene.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b4e5d0c7902026e24c0d8f99f0f2daa3
https://doi.org/10.1016/s0040-4039(01)80345-2
https://doi.org/10.1016/s0040-4039(01)80345-2
Publikováno v:
Tetrahedron Letters. 25:2717-2720
Palladium-catalyzed oxidation of conjugated dienes in acetic acid containing CF 3 COOH/LiOOCCF 3 results in the formation of 1-acetoxy-4-trifluoroacetoxy-2-alkenes.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d9439517d207b5f1e945b8e341f42478
https://doi.org/10.1016/s0040-4039(01)81271-5
https://doi.org/10.1016/s0040-4039(01)81271-5