diastereoselective

adjective1

1. •
   Of, pertaining to, or exhibiting diastereoselectivity

   • Aldrichimica Acta Volume 30 No 4 (pdf) from Sigma-Aldrich This electronwithdrawing functionality not only inhibits the tendency of vinyldiazomethanes to rearrange to 3H-pyrazoles, but is also necessary to achieve highly diastereoselective cyclopropanations.