A ruthenium-catalyzed free amine directed (5+1) annulation of anilines with olefins: diverse synthesis of phenanthridine derivatives
نویسندگان
چکیده
منابع مشابه
Synthesis of phenanthridine derivatives via cascade annulation of diaryliodonium salts and nitriles.
A cascade coupling reaction toward a variety of phenanthridine derivatives has been developed. This cascade transformation proceeds via the copper-catalyzed coupling reaction of diaryliodonium salts and nitriles, and undergoes cyclization into the phenanthridine core.
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The first example of Ru-catalyzed intramolecular annulation of alkynes with amides via formyl translocation has been developed, which provides an efficient approach for the synthesis of 1H-indole-3-carbaldehydes.
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3-Substituted 2,5-dimethylpyrazines were synthesized in high yields via a one-pot cascade annulation of easily available propargyl amine with aldehydes catalyzed by Au(PPh2Cy)Cl.
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Versatile nickel catalysts enabled the step-economical synthesis of decorated indoles through alkyne annulations with anilines bearing removable directing groups. The C-H/N-H activation strategy efficiently occurred in the absence of any metal oxidants and with excellent selectivities.
متن کاملOne-pot synthesis of alcohols from olefins catalyzed by rhodium and ruthenium complexes
The one-pot synthesis of butanol and heptanol from propene and 1-hexene, respectively, was performed using Ru3(PPh3)Cl2 and Rh(CO)2(acac) in the presence of triphenylphosphene. The effects of various reaction parameters, including catalyst concentration, gas partial pressures, and temperature, were investigated. Two methods for performing the one-pot synthesis were developed and are discussed. ...
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ژورنال
عنوان ژورنال: Chemical Communications
سال: 2019
ISSN: 1359-7345,1364-548X
DOI: 10.1039/c9cc05717j