2792-39-4Relevant academic research and scientific papers
Transition metal triflate catalyzed conversion of alcohols, ethers and esters to olefins
Keskiv?li,Parviainen,Lagerblom,Repo
, p. 15111 - 15118 (2018/05/04)
Herein, we report an efficient transition metal triflate catalyzed approach to convert biomass-based compounds, such as monoterpene alcohols, sugar alcohols, octyl acetate and tea tree oil, to their corresponding olefins in high yields. The reaction proceeds through C-O bond cleavage under solvent-free conditions, where the catalytic activity is determined by the oxophilicity and the Lewis acidity of the metal catalyst. In addition, we demonstrate how the oxygen containing functionality affects the formation of the olefins. Furthermore, the robustness of the used metal triflate catalysts, Fe(OTf)3 and Hf(OTf)4, is highlighted by their ability to convert an over 2400-fold excess of 2-octanol to octenes in high isolated yields.
Unique catalysis of gold nanoparticles in the chemoselective hydrogenolysis with H2: Cooperative effect between small gold nanoparticles and a basic support
Noujima, Akifumi,Mitsudome, Takato,Mizugaki, Tomoo,Jitsukawa, Koichiro,Kaneda, Kiyotomi
, p. 6723 - 6725 (2012/07/28)
Gold nanoparticles on hydrotalcite act as a heterogeneous catalyst for the chemoselective hydrogenolysis of various allylic carbonates to the corresponding terminal alkenes using H2 as a clean reductant. The combination of gold nanoparticles and basic supports elicited significantly unique and selective catalysis in the hydrogenolysis.
Preparation of 1-Alkenes by the Palladium-Catalyzed Hydrogenolysis of Terminal Allylic Carbonates and Acetates with Formic Acid-Triethylamine
Tsuji, Jiro,Minami, Ichiro,Shimizu, Isao
, p. 623 - 627 (2007/10/02)
A useful method for the preparation of 1-alkenes from terminal allylic carbonates and acetates by the palladium-catalyzed reaction with formates is described.Formic acid-triethylamine is a suitable reductant.As catalyst, Pd2(dba)3CHCl3-P(n-Bu)3 gave the best result, 0.05-0.2 molpercent being sufficient (turnover 500-2000).Using this method, various 1-alkenes were prepared in good yields with high selectivity.
REDUCTION OF ALLYLIC ACETATES BY USING A NOVEL Pd(O)-SmI2 SYSTEM
Tabuchi, Takanori,Inanaga, Junji,Yamaguchi, Masaru
, p. 601 - 602 (2007/10/02)
Allylic acetates were reduced to alkenes in high yields with SmI2 and 2-propanol in the presence of a catalytic amount of palladium(O) complex.
FORMATION OF 1,3-DIENETRICARBONYLIRON COMPLEXES FROM THE REACTION OF DIPOTASSIUM TETRACARBONYLFERRATE WITH ALLYLIC COMPOUNDS
Butsugan, Yasuo,Yamashita, Akihiko,Araki, Shuki
, p. 103 - 108 (2007/10/02)
The reaction of dipotassium tetracarbonylferrate with various allylic phosphates and halides gives 1,3-dienetricarbonyliron complexes.The formation of the complexes is highly stereoselective depending on the geometry of the allylic compounds used.
REGIOSELECTIVE SYNTHESIS OF 1-OLEFINS BY PALLADIUM-CATALYZED HYDROGENOLYSIS OF TERMINAL ALLYLIC COMPOUNDS WITH AMMONIUM FORMATE
Tsuji, Jiro,Shimizu, Isao,Minami, Ichiro
, p. 1017 - 1020 (2007/10/02)
Various terminal allylic compounds such as allylic esters, phenyl esters, carbonates, chlorides, and vinyl epoxides react with ammonium or sodium formate to give 1-olefins with high regioselectivity by using palladium-tributylphosphine complex as a catalyst.The reaction offers a useful synthetic method for 1-olefins.
