If Naoh was replaced by Naome or t-BuONa, a-hydroxycarboxyester will be produced NaOR COOR Ph-C-C-ph RoH Ph,( COOR H3o Ph2C oH Usually, ethyloxy anion acts as a reduction reagent. CH2CH--O Ph-c-c-ph Ph-C-ch-Ph H30 Ph-C-CH-Ph O OH 00ROH NaOR Ph C C Ph O O H3 O + Ph2 C COOR O - Ph2 C COOR OH Ph C C Ph O O CH3 CH O - H Ph C CH Ph O O - H3O + Ph C CH Ph O OH If NaOH was replaced by NaOMe or t-BuONa, α-hydroxycarboxyester will be produced Usually, ethyloxy anion acts as a reduction reagent