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Herein, we have reported the first example of both intra- and intermolecular [2+2] cycloaddition of the electron-rich indoles and unactivated aryl alkynes promoted by the combination of Fe(NO3)3 and HNO3,… Click to show full abstract
Herein, we have reported the first example of both intra- and intermolecular [2+2] cycloaddition of the electron-rich indoles and unactivated aryl alkynes promoted by the combination of Fe(NO3)3 and HNO3, which highlights efficient and selective access to several different types of functionalized cyclobutene-fused indolines from readily available starting materials with cheap catalysts and simple operations.
Keywords:
fused indolines;
cyclobutene fused;
intermolecular cycloaddition;
aryl alkynes;
intra intermolecular
Journal Title: Chemical communications
Year Published: 2022
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Journal Title: Chemical communications
Year Published: 2022
Link to full text (if available)
Share on Social Media: Sign Up to like & get
recommendations!