Role of the hydrogen bond donor component for a proper development of novel hydrophobic deep eutectic solvents
Sign Up to like & getrecommendations! Published in 2019 at "Journal of Molecular Liquids"
DOI: 10.1016/j.molliq.2019.02.107
Abstract: Abstract The environmental impact of chemical applications can be reduced by using novel solvents with green properties. In this field, Deep Eutectic Solvents (DESs) are promising liquids thanks to their low toxicity, high eco-compatibility and… read more here.
Keywords: water; bond donor; deep eutectic; eutectic solvents ... See more keywords
Ionic equilibrium in mixtures of polar protophobic and protophilic non-hydrogen bond donor solvents: Acids, salts, and indicators in acetonitrile with 4 mass % dimethylsulfoxide
Sign Up to like & getrecommendations! Published in 2020 at "Journal of Molecular Liquids"
DOI: 10.1016/j.molliq.2020.114560
Abstract: Abstract Acetonitrile (AN) and dimethylsulfoxide (DMSO) belong to the so-called polar non-hydrogen bond donor solvents, in accordance with Bordwell's classification. At that, according to Kolthoff, AN is a protophobic, and DMSO is an expressed protophilic… read more here.
Keywords: donor solvents; hydrogen bond; non hydrogen; bond donor ... See more keywords
Ascorbic Acid as a Bifunctional Hydrogen Bond Donor for the Synthesis of Cyclic Carbonates from CO2 under Ambient Conditions
Sign Up to like & getrecommendations! Published in 2017 at "ACS Sustainable Chemistry & Engineering"
DOI: 10.1021/acssuschemeng.7b01650
Abstract: Readily available ascorbic acid was discovered as an environmentally benign hydrogen bond donor for the synthesis of cyclic organic carbonates from CO2 and epoxides in the presence of nucleophilic cocatalysts. The ascorbic acid/TBAI (TBAI: tetrabutylammonium… read more here.
Keywords: donor synthesis; carbonates co2; synthesis cyclic; hydrogen bond ... See more keywords
Highly Enantioselective, Hydrogen-Bond-Donor Catalyzed Additions to Oxetanes.
Sign Up to like & getrecommendations! Published in 2020 at "Journal of the American Chemical Society"
DOI: 10.1021/jacs.0c03991
Abstract: A precisely designed chiral squaramide derivative is shown to promote the highly enantioselective addition of trimethylsilyl bromide (TMSBr) to a broad variety of 3-substituted and 3,3-disubstituted oxetanes. The reaction provides direct and gen-eral access to… read more here.
Keywords: hydrogen bond; highly enantioselective; enantioselective hydrogen; bond donor ... See more keywords
Asymmetric formation of γ-lactams via C–H amidation enabled by chiral hydrogen-bond-donor catalysts
Sign Up to like & getrecommendations! Published in 2019 at "Nature Catalysis"
DOI: 10.1038/s41929-019-0230-x
Abstract: Chiral γ-lactams are effective structural motifs found in numerous pharmaceutical agents. Despite their importance, current approaches mostly necessitate laborious synthetic steps employing pre-functionalized starting materials under demanding conditions. In this regard, asymmetric C−H amidation can… read more here.
Keywords: chiral hydrogen; hydrogen; hydrogen bond; bond donor ... See more keywords
H-Bond donor parameters for cations† †Electronic supplementary information (ESI) available: Titration data and details of fitting the binding isotherm. See DOI: 10.1039/c9sc00721k
Sign Up to like & getrecommendations! Published in 2019 at "Chemical Science"
DOI: 10.1039/c9sc00721k
Abstract: Parameters that provide a quantitative description of the free energy of interaction of cations with any H-bond acceptor in any solvent have been experimentally determined. read more here.
Keywords: parameters cations; bond donor; electronic supplementary; cations electronic ... See more keywords
Dual H-bond activation of NHC-Au(I)-Cl complexes with amide functionalized side-arms assisted by H-bond donor substrates or acid additives.
Sign Up to like & getrecommendations! Published in 2020 at "Chemical communications"
DOI: 10.1039/d0cc05999d
Abstract: Novel approach with amide-tethered H-bond donor NHC ligands enabled Au(i)-catalysis via H-bonding. The plain NHC-Au(i)-Cl complex catalysed conversions of terminal N-propynamides to oxazolines, and enyne cycloisomerization with an acid additive, in DCM at RT. DFT… read more here.
Keywords: bond; activation; bond donor; dual bond ... See more keywords