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N-Iminopyridinium ylide-directed, cobalt-catalysed coupling of sp² C-H bonds with alkynes.

ABSTRACT: N-Iminopyridinium ylides are competent monodentate directing groups for cobalt-catalysed annulation of sp2 C-H bonds with internal alkynes. The pyridine moiety in the ylide serves as an internal oxidant and is cleaved during the reaction. The annulation reactions possess excellent compatibility with heterocyclic substrates, tolerating furan, thiophene, pyridine, pyrrole, pyrazole, and indole functionalities.

SUBMITTER: Kwak SH

PROVIDER: S-EPMC7560950 | biostudies-literature | 2020 Sep

REPOSITORIES: biostudies-literature

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N-Iminopyridinium ylide-directed, cobalt-catalysed coupling of sp2 C-H bonds with alkynes.

Kwak Se Hun SH Daugulis Olafs O

Chemical communications (Cambridge, England) 20200901 75

N-Iminopyridinium ylides are competent monodentate directing groups for cobalt-catalysed annulation of sp2 C-H bonds with internal alkynes. The pyridine moiety in the ylide serves as an internal oxidant and is cleaved during the reaction. The annulation reactions possess excellent compatibility with heterocyclic substrates, tolerating furan, thiophene, pyridine, pyrrole, pyrazole, and indole functionalities. ...[more]

PMID: 32812560

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