Abstract
Tetrabutyl ammonium iodide catalyzed cross-dehydrogenative coupling reaction between α-C(sp3)–H of isochromans and N-hydroxyphathalimide has been achieved using tert-butylhydroxyperoxide as the terminal oxidant. This method offers rapid access to prevalent α-aminoxyl isochroman architectures. A diverse of synthetic isochromans was tolerated with this protocol, giving the corresponding product in moderate to good yields.
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Acknowledgements
We are grateful for financial support from the National Key R&D Program of China (Grant Number 2016YFA0202900), the National Natural Science Foundation of China (Grant Numbers 21878266, 21722609), the Fundamental Research Funds for the Central Universities (Grant Number 2018FZA4021).
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Zhou, Y., Chen, J., Elsayed, A.A. et al. Organocatalyzed cross-dehydrogenative coupling for C(sp3)–O bonds formation: a rapid access to α-aminoxyl isochromans. Catal Lett 149, 574–579 (2019). https://doi.org/10.1007/s10562-018-2640-9
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DOI: https://doi.org/10.1007/s10562-018-2640-9