Tetrahedron p. 3403 - 3408 (1980)
Update date:2022-08-03
Topics:
Lasperas, M.
Perez-Rubalcaba, A.
Quiroga-Feijoo, M. L.
The influence of a m- or p-polar substituent in 1-aryl 2-phenyl propanones, on addition reactions with CH3MgBr in ether at 30 deg C has been investigated.The invariability of asymmetric induction as a function of substituent, and the correlation of rate constant ratios with Hammett ? constants (ρ=0.24, r=0.97), are consistent with a four-centre pericyclic concerted mechanism with concomitant departure of a solvent molecule.
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