Synthesis and Structure of -Complexes of the Chiral Rhenium Lewis Acid [(5-C5H5)Re(NO)(PPh3)]+ and Aromatic Nitrogen Heterocycles Academic Article uri icon

abstract

  • Reactions of (5-C5H5)Re(NO)(PPh3)(OTf) (1) with pyridine, quinoline, and isoquinoline give the respective -adducts [(5-C5H5)Re(NO)(PPh3)(NCxHy)]+TfO- (2-4) in 86-95% yields. However, 1 and 8-methylquinoline do not react in refluxing xylene (16 h). Reactions of (+)-(R)-1 with quinoline and isoquinoline give ()-(S)-3 and (+)-(S)-4. Both products form with retention of configuration at rhenium and in <98% ee, as assayed by subsequent reactions with (CH3CH2)4N+CN- to give (+)-(S)-(5-C5H5)Re(NO)(PPh3)(CN). The crystal structures of 3 (triclinic, P1, a = 9.879(1) A, b = 16.677(2) A, c = 9.962(1) , = 91.477(3), = 99.155(3), = 100.633(3), = 2) and 4 (triclinic, P1, a = 10.961(2) , b = 15.770(2) , c = 10.159(1) A, a = 87.65(2), = 109.88(2), = 101.27(2), Z = 2) are determined, and the ReN conformations analyzed.

published proceedings

  • Zeitschrift fr Naturforschung B

author list (cited authors)

  • Dewey, M. A., Knight, D. A., Arif, A. M., & Gladysz, J. A.

citation count

  • 17

complete list of authors

  • Dewey, Michael A||Knight, D Andrew||Arif, Atta M||Gladysz, JA

publication date

  • August 1992