Direct Access to α,α-Difluoroacylated Arenes by Palladium-Catalyzed Carbonylation of (Hetero)Aryl Boronic Acid Derivatives
Thomas L. Andersen
Carbon Dioxide Activation Center (CADIAC), Department of Chemistry and the Interdisciplinary Nanoscience Center (iNANO), Aarhus University, Gustav Wieds Vej 14, 8000 Aarhus C, Denmark
Search for more papers by this authorMette W. Frederiksen
Carbon Dioxide Activation Center (CADIAC), Department of Chemistry and the Interdisciplinary Nanoscience Center (iNANO), Aarhus University, Gustav Wieds Vej 14, 8000 Aarhus C, Denmark
Search for more papers by this authorKatrine Domino
Carbon Dioxide Activation Center (CADIAC), Department of Chemistry and the Interdisciplinary Nanoscience Center (iNANO), Aarhus University, Gustav Wieds Vej 14, 8000 Aarhus C, Denmark
Search for more papers by this authorCorresponding Author
Prof. Dr. Troels Skrydstrup
Carbon Dioxide Activation Center (CADIAC), Department of Chemistry and the Interdisciplinary Nanoscience Center (iNANO), Aarhus University, Gustav Wieds Vej 14, 8000 Aarhus C, Denmark
Search for more papers by this authorThomas L. Andersen
Carbon Dioxide Activation Center (CADIAC), Department of Chemistry and the Interdisciplinary Nanoscience Center (iNANO), Aarhus University, Gustav Wieds Vej 14, 8000 Aarhus C, Denmark
Search for more papers by this authorMette W. Frederiksen
Carbon Dioxide Activation Center (CADIAC), Department of Chemistry and the Interdisciplinary Nanoscience Center (iNANO), Aarhus University, Gustav Wieds Vej 14, 8000 Aarhus C, Denmark
Search for more papers by this authorKatrine Domino
Carbon Dioxide Activation Center (CADIAC), Department of Chemistry and the Interdisciplinary Nanoscience Center (iNANO), Aarhus University, Gustav Wieds Vej 14, 8000 Aarhus C, Denmark
Search for more papers by this authorCorresponding Author
Prof. Dr. Troels Skrydstrup
Carbon Dioxide Activation Center (CADIAC), Department of Chemistry and the Interdisciplinary Nanoscience Center (iNANO), Aarhus University, Gustav Wieds Vej 14, 8000 Aarhus C, Denmark
Search for more papers by this authorAbstract
A palladium-catalyzed carbonylative coupling of (hetero)aryl boronates or boronic acid salts with carbon monoxide and α-bromo-α,α-difluoroamides and bromo-α,α-difluoroesters is described herein. The method is useful for the synthesis of a diverse selection of (hetero)aryl α,α-difluoro-β-ketoamides and α,α-difluoro-β-ketoesters, which are useful building blocks for the generation of functionalized difluoroacylated and difluoroalkyl arenes. The method could be further extended to a one-pot protocol for the formation of difluoroacetophenones.
Supporting Information
As a service to our authors and readers, this journal provides supporting information supplied by the authors. Such materials are peer reviewed and may be re-organized for online delivery, but are not copy-edited or typeset. Technical support issues arising from supporting information (other than missing files) should be addressed to the authors.
Filename | Description |
---|---|
ange201604152-sup-0001-misc_information.pdf9.9 MB | Supplementary |
Please note: The publisher is not responsible for the content or functionality of any supporting information supplied by the authors. Any queries (other than missing content) should be directed to the corresponding author for the article.
References
- 1
- 1aJ. Wang, M. Sanchez-Rosello, J. L. Acena, C. del Pozo, A. E. Sorochinsky, S. Fustero, V. A. Soloshonok, H. Liu, Chem. Rev. 2014, 114, 2432–2506;
- 1bS. Purser, P. R. Moore, S. Swallow, V. Gouverneur, Chem. Soc. Rev. 2008, 37, 320–330.
- 2N. A. Meanwell, J. Med. Chem. 2011, 54, 2529–2591.
- 3For recent work in this area, see:
- 3aZ. Feng, Q. Q. Min, H. Y. Zhao, J. W. Gu, X. Zhang, Angew. Chem. Int. Ed. 2015, 54, 1270–1274; Angew. Chem. 2015, 127, 1286–1290;
- 3bJ. Jung, E. Kim, Y. You, E. J. Cho, Adv. Synth. Catal. 2014, 356, 2741–2748;
- 3cY. L. Xiao, W. H. Guo, G. Z. He, Q. Pan, X. Zhang, Angew. Chem. Int. Ed. 2014, 53, 9909–9913; Angew. Chem. 2014, 126, 10067–10071;
- 3dL. Wang, X. J. Wei, W. L. Jia, J. J. Zhong, L. Z. Wu, Q. Liu, Org. Lett. 2014, 16, 5842–5845;
- 3eY. M. Su, Y. Hou, F. Yin, Y. M. Xu, Y. Li, X. Q. Zheng, X. S. Wang, Org. Lett. 2014, 16, 2958–2961;
- 3fA. Prieto, R. Melot, D. Bouyssi, N. Monteiro, Angew. Chem. Int. Ed. 2015, 54, 1885–1889; Angew. Chem. 2015, 127, 1905–1907;
- 3gM.-H. Yang, D. L. Orsi, R. A. Altman, Angew. Chem. Int. Ed. 2015, 54, 2361–2365; Angew. Chem. 2015, 127, 2391–2395;
- 3hN. Surapanich, C. Kuhakarn, M. Pohmakotr, V. Reutrakul, Eur. J. Org. Chem. 2012, 5943–5952;
- 3iQ. Chen, C. Wang, J. Zhou, Y. Wang, Z. Xu, R. Wang, J. Org. Chem. 2016, 81, 2639–2645.
- 4
- 4aC. Guo, R.-W. Wang, F.-L. Qing, J. Fluorine Chem. 2012, 143, 135–142;
- 4bC. Guo, R.-W. Wang, Y. Guo, F.-L. Qing, J. Fluorine Chem. 2012, 133, 86–96;
- 4cK. Fujikawa, Y. Fujioka, A. Kobayashi, H. Amii, Org. Lett. 2011, 13, 5560–5563;
- 4dS. I. Arlow, J. F. Hartwig, Angew. Chem. Int. Ed. 2016, 55, 4567–4572; Angew. Chem. 2016, 128, 4643–4648;
- 4eS. Ge, W. Chaladaj, J. F. Hartwig, J. Am. Chem. Soc. 2014, 136, 4149–4152;
- 4fS. Ge, S. I. Arlow, M. G. Mormino, J. F. Hartwig, J. Am. Chem. Soc. 2014, 136, 14401–14404.
- 5
- 5aA. Tarui, S. Shinohara, K. Sato, M. Omote, A. Ando, Org. Lett. 2016, 18, 1128–1131;
- 5bZ. Feng, Q. Q. Min, Y. L. Xiao, B. Zhang, X. Zhang, Angew. Chem. Int. Ed. 2014, 53, 1669–1673; Angew. Chem. 2014, 126, 1695–1699.
- 6
- 6aY. L. Xiao, B. Zhang, Z. Feng, X. Zhang, Org. Lett. 2014, 16, 4822–4825;
- 6bZ. Feng, Q. Q. Min, X. Zhang, Org. Lett. 2016, 18, 44–47.
- 7The main synthetic routes to access these structures are generally multistep operations featuring for example, metal-mediated addition of α-bromo-α,α-dilfuoro acetates to aryl aldehydes followed by oxidation: see Ref. [3g]; or electrophilic α-fluorination of a previously assembled 1,3-dicarbonyl or enamine:
- 7aO. D. Gupta, J. N. M. Shreeve, Tetrahedron Lett. 2003, 44, 2799–2801;
- 7bW. M. Peng, J. N. M. Shreeve, J. Org. Chem. 2005, 70, 5760–5763;
- 7cZ. Q. Xu, D. D. Desmarteau, Y. Gotoh, J. Fluorine Chem. 1992, 58, 71–79.
- 8Addition adducts of this type were in several cases isolated as a sideproduct.
- 9A detailed description of the experimental setup is included in the Supporting Information section. For example, from our group see:
- 9aP. Hermange, A. T. Lindhardt, R. H. Taaning, K. Bjerglund, D. Lupp, T. Skrydstrup, J. Am. Chem. Soc. 2011, 133, 6061–6071;
- 9bS. D. Friis, T. Skrydstrup, S. L. Buchwald, Org. Lett. 2014, 16, 4296–4299;
- 9cT. L. Andersen, S. D. Friis, H. Audrain, P. Nordeman, G. Antoni, T. Skrydstrup, J. Am. Chem. Soc. 2015, 137, 1548–1555;
- 9dD. U. Nielsen, C. Lescot, T. M. Gøgsig, A. T. Lindhardt, T. Skrydstrup, Chem. Eur. J. 2013, 19, 17926–17938.
- 10
- 10aG. A. Molander, J. Org. Chem. 2015, 80, 7837–7848;
- 10bD. M. Knapp, E. P. Gillis, M. D. Burke, J. Am. Chem. Soc. 2009, 131, 6961–6963.
- 11K. Billingsley, S. L. Buchwald, J. Am. Chem. Soc. 2007, 129, 3358–3366.
- 12The main limitations of the enclosed method were found to be the reluctance of alkyl boronates to undergo coupling. Similarly, no conversion was seen when alkyl chlorides were used as electrophiles.
- 13Aryl trifluoroborates bearing electron-deficient groups led in general to coupling yields ranging from 30–50 %. The same was observed when the potassium 3-pyridyl trifluoroborate salt was employed.
- 14
- 14aZ. S. Ye, K. E. Gettys, X. Y. Shen, M. J. Dai, Org. Lett. 2015, 17, 6074–6077;
- 14bZ. Y. Yang, D. J. Burton, J. Org. Chem. 1992, 57, 4676–4683;
- 14cZ. Y. Yang, D. J. Burton, J. Org. Chem. 1992, 57, 5144–5149.
- 15Although no effect was seen in the presence of 20 % 1,4-dinitrobenzene, full consumption of the additive was observed.
- 16We are currently investigating the nature of this side-reaction.
- 17Y. Isono, S.-I. Iwamatsu, H. Nagashima, J. Org. Chem. 2001, 66, 315–319.
Citing Literature
This is the
German version
of Angewandte Chemie.
Note for articles published since 1962:
Do not cite this version alone.
Take me to the International Edition version with citable page numbers, DOI, and citation export.
We apologize for the inconvenience.