Ni-Catalyzed Regioselective Alkylarylation of Vinylarenes via C(sp3)-C(sp3)/C(sp3)-C(sp2) Bond Formation and Mechanistic Studies

Shekhar Kc, Roshan K. Dhungana, Bijay Shrestha, Surendra Thapa, Namrata Khanal, Prakash Basnet, Robert W. Lebrun, Ramesh Giri

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85 Scopus citations

Abstract

We report a Ni-catalyzed regioselective alkylarylation of vinylarenes with alkyl halides and arylzinc reagents to generate 1,1-diarylalkanes. The reaction proceeds well with primary, secondary and tertiary alkyl halides, and electronically diverse arylzinc reagents. Mechanistic investigations by radical probes, competition studies and quantitative kinetics reveal that the current reaction proceeds via a Ni(0)/Ni(I)/Ni(II) catalytic cycle by a rate-limiting direct halogen atom abstraction via single electron transfer to alkyl halides by a Ni(0)-catalyst.

Original languageEnglish (US)
Pages (from-to)9801-9805
Number of pages5
JournalJournal of the American Chemical Society
Volume140
Issue number31
DOIs
StatePublished - Aug 8 2018

All Science Journal Classification (ASJC) codes

  • Catalysis
  • Chemistry(all)
  • Biochemistry
  • Colloid and Surface Chemistry

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