Results 81 to 90 of about 511,953 (205)

Rapid Enantiomeric Excess Measurements of Enantioisotopomers by Molecular Rotational Resonance Spectroscopy. [PDF]

Org Process Res Dev, 2023
Sonstrom RE, Vang ZP, Scolati HN, Neill JL, Pate BH, Clark JR.   +5 more
europepmc   +1 more source

Synthesis of β-Alkyl Cyclopentanones in High Enantiomeric Excess via Copper-Catalyzed Asymmetric Conjugate Reduction

, 2016
Synthesis of β-Alkyl Cyclopentanones in High Enantiomeric Excess via Copper-Catalyzed Asymmetric Conjugate ...
Yasunori Moritani (1831225), Valdas Jurkauskas (2981475), Stephen L. Buchwald (1307121), Daniel H. Appella (226905)   +3 more
core   +1 more source

Enantiomeric excess measurements of isopulegol using chiral tag spectroscopy [PDF]

, 2018
Made available in DSpace on 2018-08-17T16:09:01Z (GMT). No. of bitstreams: 2 3334.pdf: 17471 bytes, checksum: 9eb299190c0ec9d489cadf43d9eb9c83 (MD5) license.txt: 4802 bytes, checksum: 58353f9dd6876860dd5221f3d7872a95 (MD5) Previous issue date: 6Made
Mayer, Kevin J.
core   +1 more source

Synthesis of Tertiary and Quaternary Amine Derivatives from Wood Resin as Chiral NMR Solvating Agents

Molecules, 2015
Chiral tertiary and quaternary amine solvating agents for NMR spectroscopy were synthesized from the wood resin derivative (+)-dehydroabietylamine (2). The resolution of enantiomers of model compounds [Mosher’s acid (3) and its n-Bu4N salt (4)] (guests ...
Tiina Laaksonen, Sami Heikkinen, Kristiina Wähälä   +2 more
doaj   +1 more source

On the origins of life's homochirality: Inducing enantiomeric excess with spin-polarized electrons. [PDF]

Proc Natl Acad Sci U S A, 2022
Ozturk SF, Sasselov DD.
europepmc   +1 more source

Minor Enantiomer Recycling-Effect of Two Reinforcing Catalysts on Product Yield and Enantiomeric Excess

, 2010
Kinetic modeling of a recycling procedure in which the minor product enantiomer from an enantioselective catalytic reaction is selectively retransformed to starting material by a second chiral catalyst demonstrates that the enantiomeric excess of the ...
Widyan, Khalid,, Wingstrand, Erica,, Fransson, Linda,, Laurell, Anna,, Hult, Karl,, Moberg, Christina,   +5 more
core   +1 more source

Asymmetric transformation of achiral gold nanoclusters with negative nonlinear dependence between chiroptical activity and enantiomeric excess. [PDF]

Nat Commun, 2023
Liu C, Zhao Y, Zhang TS, Tao CB, Fei W, Zhang S, Li MB.   +6 more
europepmc   +1 more source

Foam Injection Molded Stereocomplex PLA: Processing, Thermal Behavior and Foam Structure

Journal of Applied Polymer Science, EarlyView.
The processing of stereocomplex poly(lactic acid) (sc‐PLA) via continuous compounding followed by thermoplastic foam injection molding is investigated. A controlled two‐stage cooling strategy effectively promotes sc‐dominated crystallization of the granulates.
Hendrik Becker, Roman Rinberg, Martin Schneebauer, Tobias Hartmann, Lothar Kroll   +4 more
wiley   +1 more source

Determination of Enantiomeric Excess and Diastereomeric Excess via Optical Methods. Application to α-methyl-β-hydroxy-carboxylic acids. [PDF]

Org Chem Front, 2023
Moor SR, Howard JR, Herrera BT, McVeigh MS, Marini F, Keatinge-Clay AT, Anslyn EV.   +6 more
europepmc   +1 more source

Determination of enantiomeric excess with chirality-dependent AC Stark effects in cyclic three-level models

, 2019
Determination of enantiomeric excess is important and remains challenges. We theoretically propose a new spectroscopic method for this issue based on the chirality-dependent AC Stark effects in cyclic three-level models under the three-photon resonance ...
Chong Ye (8768067), Yu-Yuan Chen (676029), Yong Li (15029), Quansheng Zhang (1807471)   +3 more
core   +1 more source