Planar chirality in organometallic complexes: Applications in organic enantiomer synthesis
作者:Ian M. Palotai、G.Richard Stephenson、Leon A.P. Kane-Maguire
DOI:10.1016/0022-328x(87)80357-1
日期:1987.1
Tricarbonyl(η5-2-methyl-3-methoxycyclohexadienyl)iron(1 +) PF6(1 −) (2) undergoes regioselective alkylation by (−)-1-phenylethylamine and by phosphoramide derivatives of carboxylic acid esters. The diastereomeric 1-phenylethylamine adducts were separated and reconverted into (+)-2 and (−)-2 by treatment with TFA. Resolved complexes such as 2 have stereochemical properties, arising from the presence
三羰基(η 5 -2-甲基-3- methoxycyclohexadienyl)铁(1 +)PF 6(1 - )(2)经历区域选择性烷基化( - ) - 1-苯乙胺和通过羧酸酯的磷酰胺衍生物。分离非对映异构的1-苯基乙胺加合物,并通过TFA处理将其重新转化为(+)- 2和(-)- 2。诸如2之类的已解析的复合物由于存在平面手性元素而具有立体化学性质,这阻止了它们在有机对映异构体合成中的使用过程中发生外消旋作用。