Results 241 to 250 of about 143,115 (298)

Chiral nonlinear polaritonics with van der Waals metasurfaces. [PDF]

Sci Adv
Heimig C, Antonov AA, Gryb D, Possmayer T, Weber T, Hirler M, Biechteler J, Sortino L, de S Menezes L, Maier SA, Gorkunov MV, Kivshar Y, Tittl A.   +12 more
europepmc   +1 more source

Total Synthesis of the Spirocyclic Bis‐Indole Alkaloid (−)‐Owerreine via a [4+2] Annulation

Angewandte Chemie, EarlyView.
The total synthesis of the bis‐indole alkaloid (−)‐owerreine has been accomplished by a diastereoselective [4+2] annulation between an enamine and an α,β−unsaturated indolenine precursor to form the 3‐spirocyclic tetrahydropyridine linkage of the natural product. DFT calculations allow an understanding of the mechanism of the key annulation.
Elisa Coll, Vincent Gandon, Cyrille Kouklovsky, Laurent Evanno, Guillaume Vincent   +4 more
wiley   +1 more source

Multi-Stimulus Triggered Programmable Transformation of Molecular Motor Based Chiral Supramolecular Polymers in Water. [PDF]

Angew Chem Int Ed Engl
Wang J, Stuart MCA, Feringa BL.
europepmc   +1 more source

Chirality Counts?

Pain Physician, 2012
openaire   +2 more sources

Chiral Heptagon‐Embedded Double [6]Helicenes via Scholl Reaction

Angewandte Chemie, EarlyView.
One bond makes the difference–two chiral and twisted polycyclic aromatic hydrocarbons (PAHs) show different emission behavior. The more flexible one (top) shows a double emission with one having a large anti‐Stokes shift. The two peaks are assigned to different conformers of one and the same compound.
Dan Wang, Philipp Penert, Lars Schneider, Moritz P. Schuldt, Frank Rominger, Felix Deschler, Michael Mastalerz   +6 more
wiley   +1 more source

NiH‐Catalyzed Enantioconvergent α‐Alkenylation of Carbonyl Compounds via Markovnikov Alkyne Hydronickellation

Angewandte Chemie, EarlyView.
A NiH‐catalyzed α‐alkenylation via Markovnikov hydronickellation of alkynes enables convenient access to α‐chrial β‐methylene carbonyl frameworks that are prevalent in biorelevant molecules. High regio‐ and enantioselectivities have been achieved with excellent functional group tolerance and applicability toward complex structures. The β‐methylene unit
Hyeontaek Nam, Seji Jang, Dongwook Kim, Sangwon Seo   +3 more
wiley   +1 more source

Asymmetric synthesis of planar-chiral metacyclophanes <i>via</i> aromatic amination enabled enantioselective desymmetrization. [PDF]

Chem Sci
Zhou C, Zhou J, Zhang L, Xie W, Gu H, Liu H, Yang X.   +6 more
europepmc   +1 more source

Synthesis, Functionalization, and Reactivity of Vinyl Sulfondiimidamides

Angewandte Chemie, EarlyView.
Combining unsymmetrical sulfurdiimide reagents (R‐NSN‐R1) and Grignard reagents, followed by oxidative amination, delivers a series of vinyl sulfondiimidamides. Reactivity with cysteine and lysine derivatives is shown, and the cysteine reactivity is mapped in detail. Variation of the two imidic N‐substituents can be used to tune reactivity of these new
Katherine G. Rodden, Agamemnon E. Crumpton, Samuel E. Dalton, Michael A. Clegg, Michael C. Willis   +4 more
wiley   +1 more source

Proximity-induced chirality at the achiral conductive interface by electrical control of enantiopure ion adsorption. [PDF]

Sci Adv
Huang PJ, Ando Y, Tanaka M, Nishio Y, Ideue T, Taniguchi K.   +5 more
europepmc   +1 more source

Chirality inversion in cholesteric phases of bent-shaped liquid crystal dimers with chiral dopants. [PDF]

RSC Adv
Arakawa Y, Watanabe J.
europepmc   +1 more source