178457-42-6Relevant articles and documents
Asymmetric α-alkylation of α-amino esters using pyridoxal derivatives having a chiral ansa-structure and a chiral ionophore function: A novel example of double asymmetric induction
Miyashita, Kazuyuki,Miyabe, Hideto,Tai, Kuninori,Iwaki, Hiroshi,Imanishi, Takeshi
, p. 4691 - 4700 (2000)
Stereoselective alkylation of aldimines, prepared from α-amino esters and a pyridoxal model having a chiral ansa-structure and an ethoxyethoxy group at C-3, proceeded in the presence of Li+ to give α,α-dialkyl amino esters after acidic hydrolysis. Double asymmetric induction effect was also observed in the alkylation reaction by combination of the chiral ansa- structure and a chiral ionophore side chain at C-3. (C) 2000 Elsevier Science Ltd.
Asymmetric α-alkylation of α-amino esters using pyridoxal model compounds with a chiral ionophore function; dependence of stereoselectivity on a chelated metal ion
Miyashita, Kazuyuki,Miyabe, Hideto,Tai, Kuninori,Kurozumi, Chiaki,Imanishi, Takeshi
, p. 1073 - 1074 (2007/10/03)
Asymmetric α-alkylation of α-amino esters by use of novel pyridoxal model compounds having a chiral ionophore function is studied; the stereoselectivity is specifically induced by Na+ and the most effective asymmetric induction occurs with a co
