68480-27-3Relevant articles and documents
Towards Sustainable Catalysis – Highly Efficient Olefin Metathesis in Protic Media Using Phase Labelled Cyclic Alkyl Amino Carbene (CAAC) Ruthenium Catalysts
Nagyházi, Márton,Turczel, Gábor,Balla, áron,Szálas, Gábor,Tóth, Imre,Gál, Gyula Tamás,Petra, Bombicz,Anastas, Paul T.,Tuba, Róbert
, p. 1953 - 1957 (2020/02/15)
New generations of Hoveyda and bis-carbene type of ruthenium-based olefin metathesis catalysts (10 and 12), containing cationic cyclic alkyl amino carbene (CAAC) ligands, have been synthetized. The catalysts show exceptional stability and activity in environmentally benign, protic media. Various olefin metatheses reactions of OH functionalized feedstock (e. g. RCM, ROMP CM) can be carried out at as low as 0.05 mol % catalyst loading in methanol, isopropanol, water or methanol/water solvent mixture, accomplishing the lowest applied catalyst loading reported so far in these media. The facile olefin metathesis of renewable feedstocks including phospholipids (23) and vegetable oils (20) in protic media has also been demonstrated.
Highly Regioselective Palladium-Catalyzed Carboxylation of Allylic Alcohols with CO2
Mita, Tsuyoshi,Higuchi, Yuki,Sato, Yoshihiro
supporting information, p. 16391 - 16394 (2015/11/09)
Various allylic alcohols were carboxylated in the presence of a catalytic amount of PdCl2 and PPh3 using ZnEt2 as a stoichiometric transmetalation agent under a CO2 atmosphere (1atm). This carboxylation proceeded in a highly regioselective manner to afford branched carboxylic acids predominantly. The β,γ-unsaturated carboxylic acid thus obtained was successfully converted into an optically active γ-butyrolactone, a known intermediate of (R)-baclofen.
Metathesis of renewable raw materials - Influence of ligands in the indenylidene type catalysts on self-metathesis of methyl oleate and cross-metathesis of methyl oleate with (Z)-2-butene-1,4-diol diacetate
Kajetanowicz, Anna,Sytniczuk, Adrian,Grela, Karol
supporting information, p. 1579 - 1585 (2014/03/21)
The influence of different N-heterocyclic carbene (NHC) and other neutral ligands on the outcome of the cross-metathesis reaction of methyl oleate with (Z)-2-butene-1,4-diol diacetate and self-metathesis of methyl oleate was studied for a series of indenylidene type Ru catalysts.