Syntheses and Characterization of Copper(II) Carboxylate Dimers Formed from Enantiopure Ligands Containing a Strong π···π Stacking Synthon: Enantioselective Single-Crystal to Single-Crystal Gas/Solid-Mediated Transformations
作者:Daniel L. Reger、Jacob J. Horger、Agota Debreczeni、Mark D. Smith
DOI:10.1021/ic201238n
日期:2011.10.17
enantiopure ligands have been prepared from 1,8-naphthalic anhydride and the amino acids l-alanine, d-phenylglycine, and l-asparagine to produce (S)-2-(1,8-naphthalimido)propanoic acid (HLala), (R)-2-(1,8-naphthalimido)-2-phenylacetic acid (HLphg), and (S)-4-amino-2-(1,8 naphthalimido)-4-oxobutanoic acid (HLasn), respectively. Reactions of Lala– with copper(II) acetate under a variety of solvent conditions
由1,8-萘酐和氨基酸1-丙氨酸,d-苯基甘氨酸和1-天冬酰胺制备三官能和四官能对映体配体,生成(S)-2-(1,8-萘二甲酰亚胺)丙酸( H L ala),(R)-2-(1,8-萘二甲酰亚胺)-2-苯基乙酸(H L phg)和(S)-4-氨基-2-(1,8萘二甲酰亚胺)-4-氧代丁酸酸(H L asn)。的反应大号ALA -乙酸铜(II)在各种溶剂条件下的合成,已通过X射线晶体学形成和表征了三种类似的具有不同轴向配体[Cu 2(L ala)4(THF)2 ](1),[Cu 2(L ala)4(H L ala)](2)和[Cu 2(L ala)4(py)(THF)](3)。使用THF和L phg的类似反应–导致[Cu 2(L phg)4(THF)2 ](4)。除了4的结构中的无序组分外,所有这些化合物中的萘二甲酰亚胺基团都布置在方形中央桨叶单元的同一侧,形成了所谓的手性冠构型。1,8-萘二