- Design of Manganese Phenol Pi-complexes as Shvo-type Catalysts for Transfer Hydrogenation of Ketones
-
Catalytic hydrogenation is one of the most important reactions both in academic research and industry. We explored ability of the manganese pi-complexes to act as Shvo-type catalysts for transfer hydrogenation of ketones. DFT calculations suggested that the transfer of hydrogen atoms from the hypothetical intermediate [(C6Me3H2OH)Mn(CO)2H] to acetone has low activation barrier of 10.9 kcal mol?1. Experimentally a number of ketones with various functional groups (OMe, NH2, Cl, CF3, pyridyl) were successfully reduced in isopropanol at 90 °C in the presence of the complex [(C6Me3H2OH)Mn(CO)3]BF4 (1 mol %) and tBuOK (75 mol %). However, further investigation revealed that the reduction was mainly promoted by base rather than the manganese complex.
- Shvydkiy, Nikita V.,Vyhivskyi, Oleksandr,Nelyubina, Yulia V.,Perekalin, Dmitry S.
-
p. 1602 - 1605
(2019/03/07)
-
- Synthesis of new (R)-secondary carbinols with different structures via enzymatic resolution
-
The present study deals with the biocatalytic enantioselective synthesis of 19 new chiral alcohols with alkyl (C11-C19) and phenyl, substituted phenyl, heteroaromatic, and naphthyl groups 4a-4z with an (R)-configuration and high enan
- Yildiz, Tuelay,Yusufolu, Aye
-
experimental part
p. 1347 - 1352
(2011/11/29)
-
- Studies on PPL catalyzed acetylation of 2-alkanols: Its application for the synthesis of 2-dodecanol and 2-tridecyl acetate, the pheromones of Crematogaster ants and Drosophila mulleri flies
-
Several aliphatic 2-alkanols with varying chain length has been efficiently resolved by their acetylation using vinyl acetate/PPL in diisopropyl ether. The effect of solvent polarity, position and type of unsaturation and chain length has been probed. This has led to more convenient synthesis of some insect pheromones.
- Sharma, Anubha,Pawar, Archana S.,Chattopadhyay, Subrata
-
-