- The multiple roles of imidazolium ionic liquids in transition-metal catalysis: The palladium-catalyzed telomerization of 1,3-butadiene with acetic acid
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The telomerization of 1,3-butadiene with acetic acid catalyzed by palladium(II) acetate associated with a series of phosphines in 3-(2-methoxyethyl)-1-methylimidazolium acetate was used to investigate the role of the ionic liquid. The ionic liquid plays multiple roles in this reaction as it acts as the solvent, stabilizer, ligand, and cocatalyst. The reaction performed in the presence of Dan2phos, a trifluoromethylated sulfonated triarylphosphine, at 100 °C for 24 h gave a turnover number of 14 600 with 89 % selectivity to telomers at 75 % 1,3-butadiene conversion and complete acetic acid conversion.
- Balbino, Jo?o M.,Peral, Daniel,Bay?n, J. Carles,Dupont, Jairton
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p. 972 - 977
(2015/03/18)
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- Convenient and efficient Pd-catalyzed regioselective oxyfunctionalization of terminal olefins by using molecular oxygen as sole reoxidant
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(Chemical Equation Presented) Just the one: The combination of palladium dichloride and N,N-dimethylacetamide (DMA) constitutes a highly efficient and reusable catalytic system, which uses molecular oxygen as the sole reoxidant for liquid-phase Wacker oxidation and acetoxylation of terminal olefins to the corresponding methyl ketones and linear allylic acetates, respectively (see scheme). 2006 Wiley-VCH Verlag GmbH Co. KGaA.
- Mitsudome, Takato,Umetani, Takuya,Nosaka, Naoya,Mori, Kohsuke,Mizugaki, Tomoo,Ebitani, Kohki,Kaneda, Kiyotomi
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p. 481 - 485
(2007/10/03)
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- Process for producing 1-octene from butadiene
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Method for producing 1-octene from butadiene by dimerizing and alkoxylating butadiene in the presence of one or more alkoxy substituted phosphine ligands under alkoxydimerization conditions with an alkoxydimerization catalyst, the alkoxydimerization conditions being effective to produce an alkoxydimerization product with one or more alkoxy substituted octadienes comprising primarily 1-alkoxy substituted octadiene; hydrogenating the alkoxydimerization product under hydrogenation conditions effective to produce a hydrogenation product which is primarily 1-alkoxy substituted octane; eliminating the alkoxy group from the hydrogenation product under elimination conditions effective to produce an elimination product which is primarily 1-octene and a first alkanol having from about 1 to about 3 carbon atoms; and separating the 1-octene from said elimination product.
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Page/Page column 5
(2010/02/10)
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- REACTION OF ALKANE- AND ARENESULFONAMIDES WITH ALLYLIC ELECTROPHILES, CATALYZED BY TRANSITION METAL COMPLEXES
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The reactions of N-methyl-, N-phenyl-, N-amyl-, and N-allyl-p-toluenesulfonamides and the corresponding butanesulfonamides and also of unsubstituted p-toluenesulfonamide with allyl alcohols, ethers, esters, amines, sulfides, and sulfones, catalyzed by the
- Kunakova, R. V.,Sirazova, M. M.,Dzhemilev, U. M.
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p. 746 - 752
(2007/10/02)
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- Selective Telomerization of Butadiene with Various Nucleophiles Catalyzed by Polymer-Bound Palladium(0) Complexes
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The telomerization of butadiene with various nucleophiles such as alcohols, amines, carboxylic acids, phenol, water, and silane was carried out by using the phosphinated polystyrene-bound palladium(0) catalysts.In secondary amine reactions, 2:1 adducts of
- Kaneda, Kiyotomi,Kurosaki, Hiroo,Terasawa, Masami,Imanaka, Toshinobu,Teranishi, Shiichiro
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p. 2356 - 2362
(2007/10/02)
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