Selective dimerization of styrene to 1,3-diphenylbutene-1 in the presence of [(acac)Pd(PAr3)2]BF4/BF3OEt2 catalytic systems
Selective dimerization of styrene to 1,3-diphenylbutene-1 in the presence of [(acac)Pd(PAr 3 ) 2 ]BF 4 + BF 3 OEt 2 catalytic systems, where R = C 6 H 5 , o -CH 3 C 6 H 4 , p -CH 3 C 6 H 4 , or o -CH 3 OC 6 H 4 , has been studied. Under the optimal conditions (B/Pd = 8, T = 75°C, R = C 6 H 5 ), the...
Gespeichert in:
| Veröffentlicht in: | Petroleum chemistry 2011-05, Vol.51 (3), p.157-163 |
|---|---|
| Hauptverfasser: | , , , |
| Format: | Artikel |
| Sprache: | eng |
| Schlagworte: | |
| Online-Zugang: | Volltext |
| Tags: |
Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
|
| Zusammenfassung: | Selective dimerization of styrene to 1,3-diphenylbutene-1 in the presence of [(acac)Pd(PAr
3
)
2
]BF
4
+ BF
3
OEt
2
catalytic systems, where R = C
6
H
5
,
o
-CH
3
C
6
H
4
,
p
-CH
3
C
6
H
4
, or
o
-CH
3
OC
6
H
4
, has been studied. Under the optimal conditions (B/Pd = 8,
T
= 75°C, R = C
6
H
5
), the conversion of styrene to the products exceeds the conversion for the known analogs and reaches 1.5 tons of styrene/g-atom of palladium with amounts of dimers and trimers of 91 and 9%, respectively. The dimers consist of up to 100% 1,3-diphenylbutene-1 with a trans/cis isomer ratio of 95/5. |
|---|---|
| ISSN: | 0965-5441 1555-6239 |
| DOI: | 10.1134/S0965544111030157 |