An approach towards the formation of an ester bond between the primary hydroxyl of a b-D-galactopyranoside and 2- aminoethylphosphonic acid and N-methyl substituted derivatives. Tetrahedron Lett. 1988, 29, 1199 - 1202.C. E. Dreef et al., " An Approach Towards the Formation of an Ester ...
The invention relates to a process of formation of an adhesive bond between the substrates at least one of which comprises a surface made of zinc. < / p & gt; & lt; p & gt; said method consists in applying to one or more of the substrates, an adhesive composition comprising an acryli...
Roles of conserved active site residues in the ketosynthase domain of an assembly line polyketide synthase. Biochemistry 55, 4476–4484 (2016). Article CAS PubMed Google Scholar Kwon, H.-J. et al. C-O bond formation by polyketide synthases. Science 297, 1327–1330 (2002). Article CAS ...
Ester-mediated amide bond formation: A possible path to proto-peptides on the early earth The formation of polypeptides on the early Earth has been a long-standing problem in the field of prebiotic chemistry. Although it is generally accepted that amino acids were present on the prebiotic Earth...
Here, we report the biochemical characterization of SgcC5, an NRPS condensation enzyme that catalyzes ester bond formation between the SgcCZ-tethered (5)3-chloro-5-hydroxy-β-tyrosine and (R)-1 -phenyl-1 ,2-ethanediol, a mimic of the enediyne core. SgcC5 uses (S)-3-chloro-5-hydroxy-...
For the former, the highly coordinated metal node indicates the unease of bond dissociation19; while for the later, the large local space means the detached ligands and/or metal nodes may move and even fall apart to form an unstable and collapsed structure un-beneficial to vitrification12. ...
The purity of drinking water is an important issue of the human life quality. Water disinfection has saved millions people from the diseases spread with water. However, that procedure has a certain drawback due to formation of toxic organic disinfection products. Establishing the structures of these...
When copper oxide is added to sodium bismo-phosphate glass, phosphate chains are depolymerised by the incorporation of Cu through P-O-Cu bonds. The ... A. Chahine,M. Et-Tabirou - 《Phase Transitions》 被引量: 2发表: 0年 Design and synthesis of polyol ester-based zinc metal alkoxide...
modulation of the fluorescence of appended fluorophores in the protic-solvent-inserted form of the boronic acid/boronate ester. Instead, fluorescence turn-on can be consistently tied to vibrational-coupled excited-state relaxation (a loose-bolt effect). Overall, this Review unifies and discusses the...
We introduce a photochemical bond forming system, where two colours of light are required to trigger covalent bond formation. Specifically, we exploit a visible light cis/trans isomerization of chlorinated azobenzene, which can only undergo reaction with a photochemically generated ketene in its cis ...