Suzuki-Miyaura cross-coupling of unprotected, nitrogen-rich heterocycles: substrate scope and mechanistic investigation.

@article{Dfert2013SuzukiMiyauraCO,
  title={Suzuki-Miyaura cross-coupling of unprotected, nitrogen-rich heterocycles: substrate scope and mechanistic investigation.},
  author={M Alexander D{\"u}fert and Kelvin L Billingsley and Stephen L Buchwald},
  journal={Journal of the American Chemical Society},
  year={2013},
  volume={135 34},
  pages={12877-85}
}
The Suzuki-Miyaura cross-coupling of unprotected, nitrogen-rich heterocycles using precatalysts P1 or P2 is reported. The procedure allows for the reaction of variously substituted indazole, benzimidazole, pyrazole, indole, oxindole, and azaindole halides under mild conditions in good to excellent yields. Additionally, the mechanism behind the inhibitory effect of unprotected azoles on Pd-catalyzed cross-coupling reactions is described based on evidence gained through experimental… CONTINUE READING

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