Chemistry is the experimental and theoretical study of materials on their properties at both the macroscopic and microscopic levels.In a patent， Quality Control of: fac-Tris(2-phenylpyridine)iridium, Which mentioned a new discovery about 94928-86-6
A simple and regiospecific aminohydroxylation of olefins by photoredox catalysis has been developed. N-protected 1-aminopyridinium salts are the key compounds and serve as amidyl radical precursors by the action of Ir photocatalysts, fac-[Ir(ppy)3] and [Ir(ppy)2(dtbbpy)](PF6) (ppy=2-pyridylphenyl, dtbbpy=4,4?-di-tert-butyl-2,2?-bipyridine). The present photocatalytic system allows for synthesis of vicinal aminoalcohol derivatives from olefins with various functional groups under mild reaction conditions with easy handling. Protect ya N: A simple and regiospecific aminohydroxylation of olefins by photoredox catalysis has been developed. N-Protected 1-aminopyridinium salts serve as amidyl radical precursors by the action of Ir photocatalysts, fac-[Ir(ppy)3] and [Ir(ppy)2(dtbbpy)]+ (ppy=2-pyridylphenyl, dtbbpy=4,4?-di-tert-butyl-2,2?-bipyridine). The present photocatalytic system allows easy synthesis of 1,2-aminoalcohol derivatives from olefins with various functionalities.
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Reference：
Metal catalyst and ligand design,
Ligand Template Strategies for Catalyst Encapsulation – NCBI