Cobalt-catalyzed asymmetric hydroboration of aryl ketones with pinacolborane

2015 ◽  
Vol 51 (26) ◽  
pp. 5725-5727 ◽  
Author(s):  
Jun Guo ◽  
Jianhui Chen ◽  
Zhan Lu
Keyword(s):  
Asymmetric Hydroboration ◽  
Aryl Ketones ◽  
Oxazoline Ligands

The highly enantioselective cobalt-catalyzed hydroboration reaction of aryl ketones with HBpin was developed using iminopyridine oxazoline ligands.

ChemInform Abstract: Cobalt-Catalyzed Asymmetric Hydroboration of Aryl Ketones with Pinacolborane.

ChemInform ◽  
2015 ◽  
Vol 46 (31) ◽  
pp. no-no
Author(s):  
Jun Guo ◽  
Jianhui Chen ◽  
Zhan Lu
Keyword(s):  
Asymmetric Hydroboration ◽  
Aryl Ketones

ANIPE-Cu Catalyst Enables Highly Enantioselective Markovnikov Hydroboration of α-Olefins

Synlett ◽  
2020 ◽  
Author(s):  
Shi-Liang Shi ◽  
Yuan Cai
Keyword(s):  
Petrochemical Industry ◽  
Future Directions ◽  
Asymmetric Hydroboration ◽  
Terminal Alkenes ◽  
Cu Catalyst

AbstractAsymmetric hydroboration of simple and unactivated terminal alkenes (α-olefins), feedstock chemicals derived from the petrochemical industry, has not been efficiently realized for past decades. Using a bulky ANIPE ligand, we achieved a rare example of highly enantioselective copper-catalyzed Markovnikov hydroboration of α-olefins. The chiral secondary alkylboronic ester products were obtained in moderate to good yields and regioselectivities with excellent enantioselectivities.1 Introduction2 Conditions Optimization3 Substrate Scope4 Application5 Mechanistic Discussion6 Conclusions and Future Directions

The Merger of CF3SO2Na and Palladium Catalysis to Enable Decarboxylative Cross-Coupling for the Synthesis of Aromatic Ketones under Room Temperature

2021 ◽  
Author(s):  
Pan Xie ◽  
Cheng Xue ◽  
Cancan Wang ◽  
Dongdong Du ◽  
Sanshan Shi
Keyword(s):  
Visible Light ◽  
Room Temperature ◽  
Palladium Catalysis ◽  
Cross Coupling ◽  
Boronic Acids ◽  
Aromatic Ketones ◽  
Aryl Ketones ◽  
Oxocarboxylic Acids

A CF3SO2Na/Pd(OAc)2 co-catalyzed strategy is developed to produce aryl ketones via visible-light-induced decarboxylative cross-coupling of α-oxocarboxylic acids and aryl boronic acids. This process was perfomed under air at room temperature,...

scholarly journals Synthesis of N-alkoxyphthalimide derivatives via PIDA-promoted cross dehydrogenative coupling reaction

RSC Advances ◽  
2021 ◽  
Vol 11 (14) ◽  
pp. 8051-8054
Author(s):  
Rongxiang Chen ◽  
Bing Liu ◽  
Wenbo Li ◽  
Kai-Kai Wang ◽  
Changqing Miao ◽  
...  
Keyword(s):  
Coupling Reaction ◽  
Dehydrogenative Coupling ◽  
Aryl Ketones ◽  
High Yields

A cross dehydrogenative coupling reaction of aryl ketones with N-hydroxyphthalimide was realized. The reactions afforded a clean and facile access to diverse N-alkoxyphthalimide derivatives in high yields (up to 99%).

scholarly journals Design of Iridium N-Heterocyclic Carbene Amino Acid Catalysts for Asymmetric Transfer Hydrogenation of Aryl Ketones

Catalysts ◽  
2021 ◽  
Vol 11 (6) ◽  
pp. 671
Author(s):  
Chad M. Bernier ◽  
Joseph S. Merola
Keyword(s):  
Amino Acids ◽  
Amino Acid ◽  
Enantiomeric Excess ◽  
Transfer Hydrogenation ◽  
Acid Catalysts ◽  
Asymmetric Transfer Hydrogenation ◽  
Reaction Conditions ◽  
Chiral Complexes ◽  
Acetophenone Derivatives ◽  
Aryl Ketones

A series of chiral complexes of the form Ir(NHC)2(aa)(H)(X) (NHC = N-heterocyclic carbene, aa = chelated amino acid, X = halide) was synthesized by oxidative addition of -amino acids to iridium(I) bis-NHC compounds and screened for asymmetric transfer hydrogenation of ketones. Following optimization of the reaction conditions, NHC, and amino acid ligands, high enantioselectivity was achieved when employing the Ir(IMe)2(l-Pro)(H)(I) catalyst (IMe = 1,3-dimethylimidazol-2-ylidene), which asymmetrically reduces a range of acetophenone derivatives in up to 95% enantiomeric excess.

Iron-Catalyzed Cyanoalkylation of Glycine Derivatives Promoted by Pyridine-Oxazoline Ligands

ACS Catalysis ◽  
2021 ◽  
Vol 11 (7) ◽  
pp. 4288-4293
Author(s):  
Dengfu Lu ◽  
Jiajia Cui ◽  
Sen Yang ◽  
Yuefa Gong
Keyword(s):  
Glycine Derivatives ◽  
Oxazoline Ligands
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