Stereoselectivity in Reactions of Metal Complexes. Part XV. Structure and stability of chiral cobalt(III) complexes with pentadentate ligands
作者:Klaus Bernauer、Helen Stoeckli-Evans、Deirdre Hugi-Cleary、Hermann J. Hilgers、Habib Abd-el-Khalek、Jo�lle Porret、Jean-Jacques Sauvain
DOI:10.1002/hlca.19920750719
日期:1992.11.11
new linear pentadentate ligands and their CoIII complexes are described: N,N′-[(pyridine-2,6-diy)bis(methylene)]bis[sarcosine] (sarmp), N,N′-[(pyridine-2,6-diyl)bis(methylene)]bis[(R)- or (S)-proline] ((R,R)- or (S,S)-promp), N,N′-[(pyridine-2,6-diyl)bis(methylene)]bis[N-(methyl)-(R)- or (S)-alanine] ((R,R)- or (S,S)-malmp); 2,2′-[pyridine-2,6-diyl]bis[(S)- or rac-N-(acetic acid)pyrrolidine] ((S,S)- or
描述了四个新的线性五齿配体及其Co III配合物的合成和表征:N,N '-[(吡啶-2,6-diy)双(亚甲基)双(肌氨酸)](肌氨酸)(sarmp),N,N ' -[[(吡啶-2,6-二基)双(亚甲基)]双[(R)-或(S)-脯氨酸](((R,R)-或(S,S)-提示),N,N ' -[[(吡啶-2,6-二基)双(亚甲基)]双[ N-(甲基)-(R)-或(S)-丙氨酸]((R,R)-或(S,S)-malmp); 2,2′-[吡啶-2,6-二基]双[(S)-或rac - N-(乙酸)吡咯烷]((S,S)-或rac- bapap)。Δ-:进行了表征,并与但一个例外,复合物的形成是立体有择的外型- ([R ,- [R )(或Λ-外切- (小号,小号为promp和Λ-())- [R ,- [R )(或Δ -(S,S))表示bapap。例外是[Co((R,R)-或(S,S)-malmp)H 2 O]