Journal of the American Chemical Society p. 5811 - 5819 (1983)
Update date:2022-08-05
Topics:
Merrifield
Lin
Kiel
Gladysz
The methylidene complex couples to the ethylene complex at 273-308 K in CH//2Cl//2. The rate of coupling is second order in 1 and not affected by the presence of 5-10 equiv of RCN. Data collected from 273 to 308 K give numerical results. Crossover experiments show that no PPh//3 dissociation or intermolecular methylidene scrambling occurs prior to the rate-determining coupling step, and that the RR and SS transition states are greatly preferred over the RS transition state (enantiomer self-recognition). 84 refs.
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