Results 131 to 140 of about 151,377 (294)

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

open access: yesAngewandte 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   +4 more
wiley   +2 more sources

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

open access: yesAngewandte 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   +3 more
wiley   +2 more sources

Symmetrical D-π-A-π-D indanone dyes: a new design for nonlinear optics and cyanide detection. [PDF]

open access: yesBeilstein J Org Chem
Keleş E   +4 more
europepmc   +1 more source

Abiotic formation of nitrile precursors to amino acids and nucleobases in interstellar ice analogues. [PDF]

open access: yesChem Sci
Wang J   +8 more
europepmc   +1 more source

Cyanid [PDF]

open access: yes, 2018
C. Vidal, W.-R. Külpmann
openaire   +2 more sources

Home - About - Disclaimer - Privacy