G. Mehta et al., ELECTROSTATIC VS ORBITAL EFFECTS AS STEREOINDUCTIVE FACTORS IN NUCLEOPHILIC ADDITIONS TO THE ENDO-SUBSTITUTED NORBORNAN-7-ONE RING-SYSTEM, Perkin transactions. 2, (12), 1995, pp. 2189-2190
Polar-field susceptibility parameters as well as a C-13 NMR probe base
d on the transmission of polar substituent effects in endo-norbornan-7
-ones points to the involvement of electrostatic effects in determinin
g pi-face selectivities during nucleophilic additions to this ring sys
tem.