Copolymerization of Ethylene and Methyl Acrylate by Cationic Palladium Catalysts That Contain Phosphine-Diethyl Phosphonate Ancillary Ligands

2014 ◽  
Vol 33 (13) ◽  
pp. 3546-3555 ◽  
Author(s):  
Nathan D. Contrella ◽  
Jessica R. Sampson ◽  
Richard F. Jordan
Keyword(s):  
Methyl Acrylate ◽  
Palladium Catalysts ◽  
Ancillary Ligands ◽  
Cationic Palladium

Substituent Effects of the Backbone in α-Diimine Palladium Catalysts on Homo- and Copolymerization of Ethylene with Methyl Acrylate

2012 ◽  
Vol 31 (17) ◽  
pp. 6054-6062 ◽  
Author(s):  
Lihua Guo ◽  
Haiyang Gao ◽  
Qirui Guan ◽  
Haibin Hu ◽  
Juean Deng ◽  
...  
Keyword(s):  
Methyl Acrylate ◽  
Palladium Catalysts ◽  
Substituent Effects

scholarly journals Palladium Catalyzed Alternating Cooligomerization of Ethylene and Carbon Monoxide to Unsaturated Ketones

1995 ◽  
Vol 50 (3) ◽  
pp. 430-438 ◽  
Author(s):  
Wilhelm Keim ◽  
Heiko Maas ◽  
Stefan Mecking
Keyword(s):  
Carbon Monoxide ◽  
Palladium Catalysts ◽  
Methylene Chloride ◽  
General Structure ◽  
Phosphine Ligands ◽  
Unsaturated Ketones ◽  
Palladium Catalyzed ◽  
First Time ◽  
Cationic Palladium

Cationic palladium catalysts have been used to cooligomerize ethylene and carbon monoxide. At high ethylene/CO ratios (m /m = 10:1) in methylene chloride as a solvent, unsaturated alternating cooligomers of the general structure R[C(O)CH2CH2]mH ( m ≥ 1 ; R ≡CH2=CH-, CH2=CHCH2CH2- and CH3CH = CHCH2-) were obtained for the first time. Single component catalyst precursors [(allyl)Pd(P^X )]+Y- (P^X = Ph2P(CH2)nC(= O )OR, Ph2P(CH2)2P(=O)Ph2, Ph2P(CH2)nPh2P(CH2)2S (=O )Ph, n = 1 - 3 , R = Me, Et; Y- = BF4-, SbF6- ) with bidentate P,O- and P,S-ligands as well as in situ catalysts with unfunctionalized phosphine ligands were used. With P"Bu3 as a ligand, selectivities for ethylvinylketone of 40% based on the CO converted were obtained. The hemilabile phosphino-ester and phosphinothiophene ligands behave like monodentate phosphines under catalytic conditions.

scholarly journals Ligand-controlled insertion regioselectivity accelerates copolymerisation of ethylene with methyl acrylate by cationic bisphosphine monoxide–palladium catalysts

2016 ◽  
Vol 7 (1) ◽  
pp. 737-744 ◽  
Author(s):  
Yusuke Mitsushige ◽  
Brad P. Carrow ◽  
Shingo Ito ◽  
Kyoko Nozaki
Keyword(s):  
Methyl Acrylate ◽  
Palladium Catalysts ◽  
Ethylene Methyl Acrylate

A new series of palladium catalysts ligated by a chelating bisphosphine monoxide bearing diarylphosphino groups (aryl-BPMO) exhibits markedly higher reactivity for ethylene/methyl acrylate copolymerisation.

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