Synonymer & Information om | Engelska ordet CHEMOSELECTIVE

Exempel på hur du använder CHEMOSELECTIVE i en mening

• The presence of an aromatic ring, a ketone and a γ-lactam moiety, gives to isatin the rare potential to be used as both an electrophile and a nucleophile: indeed, it undergoes an enormous number of reactions, such as N-substitutions, electrophilic aromatic substitution at positions C-5 and C-7 of the phenyl ring, nucleophilic additions onto the C-3 carbonyl group, chemoselective reductions, oxidations, ring-expansions and spiro-annulations.
• The chemoselective reaction between the peptide salicylaldehyde ester and 1,2-hydroxylamine group of Ser or Thr leads to the formation of an N,O-benzylidene acetal-linked intermediate, which undergoes acidolysis to afford a natural peptidic Xaa-Ser/Thr linkage.
• The chemical synthesis of large peptides is still limited by problems of low solvation during solid phase peptide synthesis (SPPS) or limited solubility of fully protected peptide fragments: even chemoselective ligation methods are hampered by self-association of unprotected peptide blocks.
• It is a mild, efficient, chemoselective and versatile methodology for the formation of C–C, C–N, C–O, and C–S bond of unactivated and unprotected tautomerizable heterocycles.
• Over 20 of those patents have been applied industrially in commercial processes of cracking, desulfuration, isomerization, epoxidation, chemo selective oxidation of alcohols and chemoselective hydrogenations.
• These areas include: metallation for chemoselective functionalisation of organic molecules, sensitive anion trapping, deep eutectic solvents and salt supported organometallic reagents and the catalytic applications of cooperative bimetallics.
• Ironomycin is synthesized in two steps from salinomycin sodium salt: (1) a chemoselective allylic oxidation and (2) a chemo- and diastereoselective reductive amination at C20 leading to the alkyne derivative ironomycin.
• For the bromination (with NBS) and iodination (with NIS), the reaction is highly chemoselective, with halogenation solely taking place at C–Ge in presence of electron-rich arene, heterocycle substrates or other reactive functional groups.

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