Investigation of Transition Metal Base containing Frustrated Lewis Pairs for Potential Catalysts of Sustainable Chemical Transformations

2016 Fiscal Year Annual Research Report

• Project/Area Number: 15H06424
• Research Institution: Hiroshima University
• Principal Investigator: SHANG RONG 広島大学, 理学研究科, 助教 (70754216)
• Project Period (FY): 2015-08-28 – 2017-03-31
• Keywords: transition metal / frustrated lewis pairs / ligand design

Outline of Annual Research Achievements

Complexation of the tri-tert-butylazadiboriridine (1) with gold(I) complexes AuCl(L) resulted in the formation of three structurally different complexes. When a weak Lewis base (L=SMe2) is used, a symmetrical complex [η2-B,B-B(tBu)N(tBu)B(tBu)]AuCl (2) was obtained with a loss of the ligand. In cases where phosphines were used, B-B bond cleavage accompanied by either a halide (L=PPh3) or phosphine (L=PMe3) migration proceeded to form different borylgoldborane complexes (3 and 4). A similar product (5) that is isostructural to 3 was obtained by addition of dimethylaminopyridine (DMAP) to 2-4. The effect of a second Lewis acidic center on their formation and reactivity has been investigated.

Research Progress Status

28年度が最終年度であるため、記入しない。

Strategy for Future Research Activity

28年度が最終年度であるため、記入しない。

Research Products

• [Int'l Joint Research] Department of Chemistry/Division of physical and exact sciences/University of Guanajuato(Mexico)
  • Country Name: Mexico
  • Counterpart Institution: Department of Chemistry/Division of physical and exact sciences/University of Guanajuato
• [Journal Article] Rearrangement of bis(alkylidynyl)phosphines to phospha-acyls (2017)
  • Author(s): A. L. Colebatch, Y.-S. Han, A. F. Hill, M. Sharma, R. Shang, J. S. Ward
  • Journal Title: Chem. Commun. Volume: 53 Pages: 1832-1835
  • DOI: 10.1039/C6CC09764B
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Synthesis of a Sterically Demanding Dispiropiperidine and Its Application in Monoamidodialkyl Zincate Complexes (2016)
  • Author(s): S. Morisako, R. Shang, Y. Yamamoto
  • Journal Title: Inorg. Chem. Volume: 55 Pages: 10767-10773
  • DOI: 10.1021/acs.inorgchem.6b01965
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Direct Conversion from Terminal Borylene to Terminal Phosphinidene (2016)
  • Author(s): H. Braunschweig, J. O. C. Jimenez-Halla, K. Radacki, R. Shang
  • Journal Title: Angew. Chem., Int. Ed. Volume: 55 Pages: 12673-12677
  • DOI: 10.1002/anie.201603548
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Interactions of Isonitriles with Metal Boron Bonds: Insertions, Coupling, Ring Formation, and Liberation of Monovalent Boron (2016)
  • Author(s): H. Braunschweig, M. A. Celik, R. D. Dewhurst, K. Ferkinghoff, A. Hermann, J. O. C. Jimenez-Halla, T. Kramer, K. Radacki, R. Shang, E. Siedler, F. Weissenberger, C. Werner
  • Journal Title: Chem. - Euro J. Volume: 22 Pages: 11736-11744
  • DOI: 10.1002/chem.201600793
  • Peer Reviewed / Int'l Joint Research
• [Presentation] Novel Boron-ligated Transition Metal Complexes (2016)
  • Author(s): Shang Rong, 齋藤 聡太, 薄田 康平, 山本 陽介
  • Organizer: 2016年日本化学会中国四国支部大会
  • Place of Presentation: 香川, Japan
  • Year and Date: 2016-11-05 – 2016-11-06
  • Invited
• [Presentation] Synthesis of π-withdrawing boron-ligated transition metal complexes (2016)
  • Author(s): Sohta Saito, Rong Shang, and Yohsuke Yamamoto
  • Organizer: The 27th International Conference on Organometallic Chemistry (ICOMC 2016)
  • Place of Presentation: Melbourne, Australia
  • Year and Date: 2016-07-17 – 2016-07-22
  • Int'l Joint Research