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UMSYMMETRICAL BISAZIDES FOR CHEMOSELECTIVE SEQUENTIAL LIGATION
UMSYMMETRICAL BISAZIDES FOR CHEMOSELECTIVE SEQUENTIAL LIGATION
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机译:化学选择性序贯连接的对称对称双氰化物
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摘要
Unsymmetrical bisazides containing chelating and non-chelating azido groups undergo chemoselective three-component copper(I)-catalyzed azide-alkyne conjugation reactions with two different alkyne molecules. In conjunction with the reactivity gap between aromatic and aliphatic alkynes, a bistriazole molecule can be generated with an excellent regioselectivity by mixing two alkynes and a bisazide in a single reaction container. This method is applicable in aqueous solutions at neutral pH, which may lend utilities in bioconjugation applications.
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