bˈoʊθ ɹuːθˈiːniəm ænd sɐmˈɛɹiəm hæv ʃˈoʊn hˈaɪ jˈiːldz ænd hˈaɪ stˌɛɹɪˌoʊsᵻlɪktˈɪvᵻɾi ɪnðə ɹᵻdˈʌkʃən ʌv kˈɑːɹbənˌaɪlz tʊ ˈælkəhˌɑːlz.
Both ruthenium and samarium have shown high yields and high stereoselectivity in the reduction of carbonyls to alcohols.