Introducing Trifluoromethoxyarenes as Halide Surrogates in Mechanochemical Realizations of Ni-catalyzed Cross-coupling ReactionsShow others and affiliations
2023 (English)In: Asian Journal of Organic Chemistry, ISSN 2193-5807, Vol. 12, no 6, article id e202300094Article in journal (Refereed) Published
Abstract [en]
Since the introduction of the TM-catalyzed cross-couplings their scope of starting materials has been growing systematically, allowing for more flexible design of synthetic routes with the coupling as a key step, particularly late-stage modifications. Herein we present the use of trifluoromethoxyarenes as halide surrogates in Ni-catalyzed couplings with arylboronic acids, potassium aryl trifluoroborates and aryl trialkoxysilanes, under mechanochemical conditions. In total, 22 biphenyl structures were obtained in good yields. Successful gram scale experiments confirm the usefulness of our protocol. The developed transformations’ mechanism was discussed in relation to the experimental and literature data and DFT calculations. The unusual reactivity of potassium benzoyltrifluoroborates was uncovered. 6 examples of resulting benzophenones were obtained in very good yields and the protocol was extended to gram scale. The described methods present a powerful tool when combined with the recent advances in organofluorine chemistry.
Place, publisher, year, edition, pages
Wiley , 2023. Vol. 12, no 6, article id e202300094
Keywords [en]
Cucurbit[7]uril, C−C Coupling, Mechanochemistry, Nickel Catalysis, Trifluoromethoxy group
National Category
Organic Chemistry Wood Science
Identifiers
URN: urn:nbn:se:kth:diva-331561DOI: 10.1002/ajoc.202300094ISI: 000989619900001Scopus ID: 2-s2.0-85159602045OAI: oai:DiVA.org:kth-331561DiVA, id: diva2:1781913
Note
QC 20231122
2023-07-112023-07-112023-11-22Bibliographically approved