Azacalixquinarenes: From Canonical to (Poly-)Zwitterionic Macrocycles
نویسندگان
چکیده
منابع مشابه
Zwitterionic Poly(amino acid methacrylate) Brushes
A new cysteine-based methacrylic monomer (CysMA) was conveniently synthesized via selective thia-Michael addition of a commercially available methacrylate-acrylate precursor in aqueous solution without recourse to protecting group chemistry. Poly(cysteine methacrylate) (PCysMA) brushes were grown from the surface of silicon wafers by atom-transfer radical polymerization. Brush thicknesses of ca...
متن کاملStabilization of zwitterionic versus canonical proline by water molecules.
At physiological conditions, a majority of biomolecules (e.g., amino acids, peptides and proteins) exist predominantly in the zwitterionic form that usually decides the biological functions. However, zwitterionic amino acids are not geometrically stable in gas phase and this seriously hampers the understanding of their structures, properties and biological functions. To this end, one of the rec...
متن کاملZwitterionic poly(carboxybetaine) hydrogels for glucose biosensors in complex media.
Zwitterionic hydrogels based on poly(carboxybetaine) methacrylate (polyCBMA) were developed to protect implantable electrochemical glucose biosensors from biofouling in complex media. To enhance the linearity and sensitivity of the sensing profile, both physical and chemical adsorption methods were developed. Results show that glucose sensors coated with polyCBMA hydrogels via the chemical meth...
متن کاملAn excess electron bound to urea. I. Canonical and zwitterionic tautomers
The possibility of electron binding to urea was studied at the coupled cluster level of theory with single, double, and noniterative triple excitations. It was found that none of the urea isomers forms a valence anionic state although almost all of them can attach an excess electron and form a stable dipole-bound or Rydberg anion. Moreover, the canonical tautomers are the lowest energy structur...
متن کاملNovel comb polymers from alternating N-acylated poly(aminoester)s obtained by spontaneous zwitterionic copolymerisation.
N-Acylated poly(aminoester) (NPAE) macromonomers were synthesised via spontaneous copolymerisation of 2-oxazolines and acrylic acid. Inherent quantitative introduction of α-vinyl end-groups was observed, which enabled the preparation of a series of well-defined NPAE comb polymers through redox-initiated RAFT polymerisation. Investigations of the thermal properties of the comb polymers revealed ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: The Journal of Organic Chemistry
سال: 2019
ISSN: 0022-3263,1520-6904
DOI: 10.1021/acs.joc.8b02847