33395-22-1Relevant academic research and scientific papers
Palladium(0)-alkene bis(triarylphosphine) complexes as catalyst precursors for the methoxycarbonylation of styrene
De Pater, Jeroen J. M.,Tromp,Tooke, Duncan M.,Spek, Anthony L.,Deelman, Berth-Jan,Van Koten, Gerard,Elsevier, Cornelis J.
, p. 6411 - 6419 (2005)
The fluorous complex [Pd(0)(P{C6H4-p-SiMe 2(CH2CH2C6F13)} 3)2(MA)] (MA = maleic anhydride) was synthesized and characterized by its NMR spectra. Together with the nonfluorous complexes [Pd(0)(PPh3)2(alkene)] (alkene = C2H 4) (NC)2C=C(CN)2), NCC(H)= C(H)CN, MA, or benzoquinone) these were evaluated as catalyst precursors in the methoxycarbonylation of styrene. The nonfluorous C2H4 and MA complexes gave the highest conversions (the turnover number (TON) was 120; the (average) turnover frequency (TOF) amounted to 80 h-1). The fluorous complex gave a significantly lower conversion (TON about 38; TOF 26 h-1) than its nonfluorous counterpart, which is caused by a lower stability of the fluorous complex under the reaction conditions.
