The preparation of ester heterocycles mostly uses heteroatoms as nucleophilic sites, which are achieved by intramolecular substitution or addition reactions. Compound: H-Trp-OMe.HCl( cas:7524-52-9 ) is researched.Safety of H-Trp-OMe.HCl.Chan, Hwai-Chien; Bueno, Bianca; Le Roch, Adrien; Gagnon, Alexandre published the article 《Copper-promoted N-arylation of the imidazole side chain of protected histidine by using triarylbismuth reagents》 about this compound( cas:7524-52-9 ) in Chemistry – A European Journal. Keywords: dipeptide arylated histidine synthesis functional group; histidine imidazole arylation copper catalyst triarylbismuth reagent; arylation reaction mechanism; N-arylation; copper catalysis; histidine; imidazole; organobismuthines. Let’s learn more about this compound (cas:7524-52-9).
The N-arylation of the side chain of histidine by using triarylbismuthines is reported. The reaction is promoted by copper(II) acetate in dichloromethane at 40°C under oxygen in the presence of diisopropylethylamine and 1,10-phenanthroline and allows the transfer of aryl groups with substituents at any position of the aromatic ring. The reaction shows excellent functional group tolerance and is applicable to dipeptides where the histidine is located at the N terminus. A histidine-guided backbone N-H arylation was observed in dipeptides where the histidine occupies the C terminus.
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Reference:
1,3-Benzodioxole – Wikipedia,
Dioxole | C3H4O2 – PubChem