104371-20-2Relevant articles and documents
The influence of wavelength of light on cyanobacterial asymmetric reduction of ketone
Itoh, Ken-Ichi,Nakamura, Kaoru,Aoyama, Tadashi,Kakimoto, Tsuyoshi,Murakami, Masahiko,Takido, Toshio
, p. 435 - 437 (2014)
Asymmetric reduction of ketone by a microalga, Synechocystis sp. PCC 6803, smoothly afforded to the corresponding (S)-alcohol in excellent enantiomeric excess by the aid of illumination of orange and red LED lights which are more effective than other LEDs
Asymmetric Hydrogenation of Polysubstituted Aromatic Ketones Catalyzed by the DIPSkewphos/PICA Derivative–Ruthenium(II) Complexes
Utsumi, Noriyuki,Arai, Noriyoshi,Kawaguchi, Kei,Katayama, Takeaki,Yasuda, Toshihisa,Murata, Kunihiko,Ohkuma, Takeshi
, p. 3955 - 3959 (2018)
The DIPSkewphos/PICA derivative-Ru(II) complexes catalyzed asymmetric hydrogenation of significantly sterically hindered 2’,3’,4’,5’,6’-pentamethylacetophenone, which was not reduced with NaBH4 at 25 °C, with a substrate-to-catalyst molar ratio
Enantioselectivity in the Noyori?Ikariya asymmetric transfer hydrogenation of ketones
Dub, Pavel A.,Smith, Justin S.,Tkachenko, Nikolay V.,Tretiak, Sergei,Vyas, Vijyesh K.,Wills, Martin
, p. 1402 - 1410 (2021)
Asymmetric transfer hydrogenation (ATH) is an important catalytic process in the fragrance and pharmaceutical industries. The Noyori?Ikariya chiral molecular ruthenium complex has been the catalyst of choice for this reaction for over 25 years. The mechan
Asymmetric synthesis of optically active fluorine-containing alcohols by the catalytic enantioselective alkylation of aldehydes
Hayase, Tadakatsu,Sugiyama, Tadashi,Suzuki, Masanori,Shibata, Takanori,Soai, Kenso
, p. 1 - 5 (1997)
Optically active fluorine-containing alcohols with up to 97% enantiomeric excess were synthesized by the enantioselective addition of dialkylzincs to fluorine-containing aldehydes using chiral β-aminoalcohol catalysts such as N,N-dibutylnorephedrine (DBNE
Asymmetric Magnesium-Catalyzed Hydroboration by Metal-Ligand Cooperative Catalysis
Falconnet, Alban,Magre, Marc,Maity, Bholanath,Cavallo, Luigi,Rueping, Magnus
supporting information, p. 17567 - 17571 (2019/11/13)
Asymmetric catalysis with readily available, cheap, and non-toxic alkaline earth metal catalysts represents a sustainable alternative to conventional synthesis methodologies. In this context, we describe the development of a first MgII-catalyzed enantioselective hydroboration providing the products with excellent yields and enantioselectivities. NMR spectroscopy studies and DFT calculations provide insights into the reaction mechanism and the origin of the enantioselectivity which can be explained by a metal-ligand cooperative catalysis pathway involving a non-innocent ligand.
Asymmetric Hydrogenation of Aryl Perfluoroalkyl Ketones Catalyzed by Rhodium(III) Monohydride Complexes Bearing Josiphos Ligands
Brüning, Fabian,Nagae, Haruki,K?ch, Daniel,Mashima, Kazushi,Togni, Antonio
supporting information, p. 10818 - 10822 (2019/07/31)
The asymmetric hydrogenation of 2,2,2-trifluoroacetophenones and aryl perfluoroalkyl ketones was developed using a unique, well-defined chloride-bridged dinuclear rhodium(III) complex bearing Josiphos-type diphosphine ligands. These complexes were prepared from [RhCl(cod)]2, Josiphos ligands, and hydrochloric acid. As catalyst precursors, they allow for the efficient and enantioselective synthesis (up to 99 % ee) of chiral secondary alcohols with perfluoroalkyl groups. This system does not require an activating base for the hydrogenation of 2,2,2-trifluoroacetophenones. Additionally, the enantioselective C=O hydrogenations of 2-phenyl-3-(haloacetyl)-indoles, a class of privileged structures in medicinal chemistry, is reported for the first time.