Bibliographic Details
| Title: |
Reactions of Indene and Indoles with Platinum Methyl Cations: Indene C−H Activation, Indole versus Nitrogen Lone-Pair Coordination. |
| Authors: |
Travis J. Williams1, Jay A. Labinger1, John E. Bercaw1 |
| Source: |
Organometallics. Jan2007, Vol. 26 Issue 2, p281-287. 7p. |
| Subjects: |
Cations, Nitrogen, Platinum, Indole |
| Abstract: |
Reactions of indene and various substituted indoles with (diimine)PtII(Me)(TFE)cations have been studied (diimine ArNC(Me)−C(Me)NAr; TFE 2,2,2-trifluoroethanol). Indene displaces the TFE ligand from platinum to form a stable coordination complex that, upon heating, undergoes C−H activation with first-order kinetics, H29 kcal/mol, S10 eu, and a kinetic isotope effect of 1.1 at 60 °C. Indoles also initially form coordination complexes through the C2C3 olefin, but these undergo rearrangement to the corresponding N-bound complexes. The relative rates of initial coordination and rearrangement are affected by excess acid or methyl substitution on indole. [ABSTRACT FROM AUTHOR] |
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| Database: |
Engineering Source |
