Circularly polarized luminescence based chirality transfer of the chiral BINOL moiety via rigid π-conjugation chain backbone structures

2017 ◽  
Vol 8 (9) ◽  
pp. 1555-1561 ◽  
Author(s):  
Fandian Meng ◽  
Yunzhi Li ◽  
Wenjie Zhang ◽  
Shuhua Li ◽  
Yiwu Quan ◽  
...  
Keyword(s):  
Coupling Reaction ◽  
Cross Coupling ◽  
Chirality Transfer ◽  
Circularly Polarized ◽  
Cross Coupling Reaction ◽  
Conjugation Chain ◽  
Circularly Polarized Luminescence ◽  
Polarized Luminescence

Three kinds of chiral BINOL-based polymers could be synthesized by polymerization in a Pd-catalyzed cross-coupling reaction.

scholarly journals A Quantum-Chemical DFT Approach to Elucidation of the Chirality Transfer Mechanism of the Enantioselective Suzuki–Miyaura Cross-Coupling Reaction

2017 ◽  
Vol 2017 ◽  
pp. 1-12 ◽  
Author(s):  
Radomir Jasiński ◽  
Oleg M. Demchuk ◽  
Dmytro Babyuk
Keyword(s):  
Quantum Chemical ◽  
Coupling Reaction ◽  
Cross Coupling ◽  
Palladium Complexes ◽  
Initial Reaction ◽  
Chiral Ligand ◽  
Chirality Transfer ◽  
Cross Coupling Reaction ◽  
Enantioselective Reactions ◽  
Selection Of

The DFT calculations of the simplified model of the asymmetric Suzuki–Miyaura coupling reaction were performed at the M062x/LANL2DZ theory level at first. It was found that enantioselective reactions mediated by the palladium complexes of chiral C,P-ligands follow a four-stage mechanism similar to that proposed previously as one of the most credible mechanisms. It should be underlined that the presence of substituents in the substrates and the chiral ligand at ortho positions determines the energies of possible diastereoisomeric transition states and intermediates in initial reaction steps. This suggests that, in practice, a sharp selection of theoretically possible paths of chirality transfer from the catalyst to the product should have a place and, therefore, the absolute configuration of the formed atropisomeric product is defined and can be predicted.

Stereogenic cyclic oligonaphthalenes displaying ring size-dependent handedness of circularly polarized luminescence (CPL)

2019 ◽  
Vol 55 (19) ◽  
pp. 2749-2752 ◽  
Author(s):  
Yuki Nojima ◽  
Masashi Hasegawa ◽  
Nobuyuki Hara ◽  
Yoshitane Imai ◽  
Yasuhiro Mazaki
Keyword(s):  
Coupling Reaction ◽  
Ring Size ◽  
Chiroptical Properties ◽  
Circularly Polarized ◽  
Size Dependent ◽  
Circularly Polarized Luminescence ◽  
Polarized Luminescence ◽  
Cyclic Oligomers

A series of cyclic oligomers with Dn symmetry (n = 2–5) based on chiral (R)/(S)-binaphthyl exhibiting intensive chiroptical properties were synthesized by using a Ni(0)-catalyzed coupling reaction.

Chirality Transfer via the Palladium-Catalyzed Cross-Coupling Reaction of Optically Active 2-Cyclohexenylsilane:  Stereochemical and Mechanistic Aspects

1996 ◽  
Vol 15 (26) ◽  
pp. 5762-5765 ◽  
Author(s):  
Tamejiro Hiyama ◽  
Hayao Matsuhashi ◽  
Akinori Fujita ◽  
Makoto Tanaka ◽  
Kazunori Hirabayashi ◽  
...  
Keyword(s):  
Coupling Reaction ◽  
Cross Coupling ◽  
Optically Active ◽  
Chirality Transfer ◽  
Cross Coupling Reaction ◽  
Palladium Catalyzed

G-quadruplex DNA regulates invertible circularly polarized luminescence

2019 ◽  
Vol 7 (44) ◽  
pp. 13947-13952 ◽  
Author(s):  
Jingqi Chen ◽  
Yingying Chen ◽  
Lijuan Zhao ◽  
Lingyan Feng ◽  
Feifei Xing ◽  
...  
Keyword(s):  
Chirality Transfer ◽  
Quadruplex Dna ◽  
Circularly Polarized ◽  
G Quadruplex ◽  
Circularly Polarized Luminescence ◽  
Polarized Luminescence ◽  
First Time

Circularly polarized luminescence (CPL) was performed for the first time in G4 research in which chirality transfer from G4 to the achiral dye. Opposite CPL signals are obtained on mirror d-/l-enantiomers and parallel/antiparallel G4 changes.

Sign in / Sign up

Export Citation Format

Share Document