Abstract
When high-pressure NMR techniques are employed, the following two facts are revealed. (1) The cis/trans isomerization from (SP-4-4)-[Pt(CH3)(CO)(L1)][BAr4] (8a; L1 = (R,S)-BINAPHOS; Ar = 3,5-(CF3)2C6H3) to the more stable SP-4-3 isomer (8b) is faster than CO insertion into either 8a or 8b, the CO insertion being reversible. (2) For the Pd11-L1-catalyzed copolymerization of propene and CO, there exist at least two major resting states, most probably acylpalladium, (SP-4-3)-[Pd(COR)(L2)(L1)][BAr4] (3; L2 = CH3CN, CO), and alkyl-palladium, [Pd{CH2CH(CH3)C(=O)R}(L1)][BAr4] (5a).
| Original language | English |
|---|---|
| Pages (from-to) | 2031-2035 |
| Number of pages | 5 |
| Journal | Organometallics |
| Volume | 19 |
| Issue number | 10 |
| Publication status | Published - May 15 2000 |
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ASJC Scopus subject areas
- Inorganic Chemistry
- Organic Chemistry
Cite this
High-pressure NMR studies on the alternating copolymerization of propene with carbon monoxide catalyzed by a palladium(II) complex of an unsymmetrical phosphine-phosphite ligand. / Nozaki, Kyoko; Hiyama, Tamejiro; Kacker, Smita; Horváth, I.
In: Organometallics, Vol. 19, No. 10, 15.05.2000, p. 2031-2035.Research output: Contribution to journal › Article
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TY - JOUR
T1 - High-pressure NMR studies on the alternating copolymerization of propene with carbon monoxide catalyzed by a palladium(II) complex of an unsymmetrical phosphine-phosphite ligand
AU - Nozaki, Kyoko
AU - Hiyama, Tamejiro
AU - Kacker, Smita
AU - Horváth, I.
PY - 2000/5/15
Y1 - 2000/5/15
N2 - When high-pressure NMR techniques are employed, the following two facts are revealed. (1) The cis/trans isomerization from (SP-4-4)-[Pt(CH3)(CO)(L1)][BAr4] (8a; L1 = (R,S)-BINAPHOS; Ar = 3,5-(CF3)2C6H3) to the more stable SP-4-3 isomer (8b) is faster than CO insertion into either 8a or 8b, the CO insertion being reversible. (2) For the Pd11-L1-catalyzed copolymerization of propene and CO, there exist at least two major resting states, most probably acylpalladium, (SP-4-3)-[Pd(COR)(L2)(L1)][BAr4] (3; L2 = CH3CN, CO), and alkyl-palladium, [Pd{CH2CH(CH3)C(=O)R}(L1)][BAr4] (5a).
AB - When high-pressure NMR techniques are employed, the following two facts are revealed. (1) The cis/trans isomerization from (SP-4-4)-[Pt(CH3)(CO)(L1)][BAr4] (8a; L1 = (R,S)-BINAPHOS; Ar = 3,5-(CF3)2C6H3) to the more stable SP-4-3 isomer (8b) is faster than CO insertion into either 8a or 8b, the CO insertion being reversible. (2) For the Pd11-L1-catalyzed copolymerization of propene and CO, there exist at least two major resting states, most probably acylpalladium, (SP-4-3)-[Pd(COR)(L2)(L1)][BAr4] (3; L2 = CH3CN, CO), and alkyl-palladium, [Pd{CH2CH(CH3)C(=O)R}(L1)][BAr4] (5a).
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UR - http://www.scopus.com/inward/citedby.url?scp=0001617453&partnerID=8YFLogxK
M3 - Article
AN - SCOPUS:0001617453
VL - 19
SP - 2031
EP - 2035
JO - Organometallics
JF - Organometallics
SN - 0276-7333
IS - 10
ER -