| Abstrakt: |
An efficient pyrrolidine : 4‐ClBzOH salt (catalyst IV) catalyzed [3+3] cyclization reaction of β‐alkyl‐substituted nitroalkenes as 1,3‐binucleophiles with various β‐aryl/alkyl/alkenyl‐substituted acroleins in an open‐atmosphere is reported. Eventually, this tunable organocatalytic reaction creates one C−C and C=C bonds selectively that turns out to have a wide substrate scope, which affords a series of substituted nitroarenes in good to high yields. In addition, several other positive features are associated with this organocatalytic approach such as evading toxic metal‐catalysts, no need for external oxidant and nitrating agent, 100% carbon‐economical, excellent tolerance of functionalities, water as a sole by‐product, circumventing of pre‐functionalized arenes etc. Moreover, a range of important hetero‐and carbocycles such as 2‐arylcarbazole, 2,6‐diphenylindole, 2′‐chloro‐1,1′ : 4′,1′′‐terphenyl and 1 : 1′ : 4′,1′′‐terphenyl were accessed from nitroarenes through our unique methods. [ABSTRACT FROM AUTHOR] |
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