Bis(dibenzylideneacetone)palladium Chemische Eigenschaften,Einsatz,Produktion Methoden
R-Sätze Betriebsanweisung:
R36/38:Reizt die Augen und die Haut.
S-Sätze Betriebsanweisung:
S22:Staub nicht einatmen.
S24/25:Berührung mit den Augen und der Haut vermeiden.
S37/39:Bei der Arbeit geeignete Schutzhandschuhe und Schutzbrille/Gesichtsschutz tragen.
S26:Bei Berührung mit den Augen sofort gründlich mit Wasser abspülen und Arzt konsultieren.
Chemische Eigenschaften
purple brown
Verwenden
Hydrogenation, isomerization, carbonylation, oxidation, C-C bond formation.Bis(dibenzylideneacetone)palladium(0) is used as a reagent for the preparation of allylic substituted cyclopentadienes. It acts as a homogeneous catalyst as well as in the alkylation of allyl acetates by various nucleophiles. Further, it is used in Suzuki reaction.
Application
Bis(dibenzylideneacetone)palladium(0) (Pd(dba)2) was employed as catalyst in the following studies:
Synthesis of isomeric 2-aryl-2,5-dihydrofurans, via Heck coupling of aryl bromides with alkenes using neopentyl phosphine ligands.
Heck reaction of benzyl trifluoroacetate and 2,3-dihydrofuran phosphoramidite ligand.
Allylation of stabilized anions.Cross coupling of allyl, alkenyl and aryl halides with organostannanes.
Cross coupling of vinyl halides with alkenyl zinc species.Carbonylation of alkenyl and aryl halides.
Employed with cyclic thiourea ligands in an efficient aerobic oxidation of alcohols to aldehydes and ketones.
Allgemeine Beschreibung
Bis(dibenzylideneacetone)palladium(0) (Pd(dba)
2) is an air stable Pd
0 complex. It is a reagent for the synthesis of allylic substituted cyclopentadienes. It is a homogeneous catalyst. It catalyzes the alkylation of allyl acetates by various nucleophiles under mild conditions.
Bis(dibenzylideneacetone)palladium Upstream-Materialien And Downstream Produkte
Upstream-Materialien
Downstream Produkte
