Switch-Peptides: Controlling Self-Assembly of Amyloid β-Derived Peptides in vitro by Consecutive Triggering of Acyl Migrations

The sequential triggering (Soff → Son) of O, N-acyl migrations (AcM) by chemical and enzymatic methods (Ti) in peptides containing structure-disrupting switch-elements, S (switch-peptides), offers a novel tool for studying in statu nascendi the onset and inhibition of polypeptide folding and self-assembly as a key process in degenerative diseases

Synthesis, Solution Dynamics, and X-ray Crystal Structure of Bis(2,4,6-tris(trifluoromethyl)- phenyl)(1,2-dimethoxyethane)nickel

Reaction of dichloro(1,2-dimethoxyethane)nickel with 2 equiv of (tris(2,4,6-trifluoromethyl)phenyl)lithium, generated in situ, produced bis(2,4,6-tris(trifluoromethyl)phenyl)(1,2-dimethoxyethane)nickel. Significant nickel−fluorine interactions are revealed both in the solid state (X-ray crystal structure data) and in solution (variable-temperature 19F NMR spectral data)