Complexation of Chiral Di (N-Protected a-Amino)-b-Diketones with Some Transition Metals
作者:Ibrahim A.M. Saraireh
DOI:10.14233/ajchem.2013.14080
日期:——
Chiral Di (N-protected a-amino)-b-diketones and its transition metal complexes have been synthesized. Di(N-protected a-amino)-b-diketones were prepared by reaction of activation of N-protected-a-amino acids (imidazolide) with a-diazoketones derived from natural amino acids in presence of lithium diisopropyl amid in tetrahydrofuran as a solvent at -78 ºC and treatment the product with rhodium acetate to remove diazo group. The synthesized compounds were characterized by analytical techniques viz: IR, NMR and elemental analysis. The thermal stability of the newly synthesized metal complexes have been studied.
合成了手性二(N保护α-氨基)-β-二酮及其过渡金属复合物。二(N保护α-氨基)-β-二酮通过在-78 ºC的四氢呋喃溶剂中,利用锂二异丙基酰胺激活N保护的α-氨基酸(咪唑化物)与来自天然氨基酸的α-二氮基酮反应制备,并用醋酸铑处理产物以去除二氮基团。合成的化合物通过红外光谱(IR)、核磁共振(NMR)和元素分析等分析技术进行了表征。新合成的金属复合物的热稳定性也进行了研究。